検索結果 15960 件
| タイトル（別表記） | Measurements of Response of Barley and Wheat to Enviromental Factors with an Open System Porometer |
|---|---|
| フルテキストURL | 005_001_011_021.pdf |
| 著者 | 米谷 俊彦| 柏木 良明| |
| 抄録 | The rates of photosynthesis and transpiration were measured in barley and wheat under various environmental conditions, with an open system porometer. The rates of photosynthesis and transpiration in the horizontal leaf and vertical leaf had different diurnal variations. The rate of photosynthesis in the vertical leaf was highest in the morning and in the afternoon, while that in the horizontal leaf was highest before noon. The rates of photosynthesis and transpiration and chlorophyll contents were measured for two species(c.v SARI and Akanmugi) of barley grown in submerged soil conditions. At the end of April, chlorophyll contents had decreased and the maintenance respiration acquired in spite of continuous transpiration. The rapid change of photosynthetically active radiation did not affect the rates of photosynthesis or stomatal conductance of SARI grown in submerged soil. The rates of photosynthesis and transpiration and chlorophyll contents were measured for two species(c.v. Hongmangmai and Haruhikari) of wheat grown under different soil water conditions. Chlorophyll content tended to increase in dry soil conditions. Hongmangmai had a higher chlorophyll content than Haruhikari, even at the beginning of May. Hongmangmai had large photosynthetic rate and small transpiration rates under dry soil conditions. These confirm that Hongmangmai has a prominent drought stress tolerance. The open system porometer and the chlorophyll meter may be very useful for comparing physiological characteristics of the plant's response to environmental factors and clarifying differences between plant species. |
| キーワード | Barley Hongmangmai Photosynthesis rate Chlorophyll content Submerged soil Dry soil |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1997 |
| 巻 | 5巻 |
| 号 | 1号 |
| 開始ページ | 11 |
| 終了ページ | 21 |
| ISSN | 0916-930X |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | ライムギ小型染色体を保持する普通系コムギからのライムギ型cDNAのディファレンシャルスクリーニング |
|---|---|
| フルテキストURL | 006_001_053_064.pdf |
| 著者 | 村田 稔| |
| 抄録 | Occurrence of the midget chromosome in a common wheat with rye cytoplasm [(cereale)-Chinese Spring (CS)] indicates that the chromosome carries the essential gene(s) for maintaining the function of rye cytoplasm. To elucidate the interaction between the midget chromosome and rye cytoplasm, in this study, an attempt was made to isolate rye-type cDNAs from a cDNA library of (cereale)-CS by differential screening. Two replica filters from each plate were hybridized with digoxigenin (DIG)-labeled wheat CS cDNAs and with DIG-labeled rye cDNAs,respectively. Out of ca. 20,000 plaques, 27 were hybridized more strongly with rye cDNAs than with CS cDNAs. These clones were classified into six classes (Ⅰ-Ⅵ) by blot hybridization. The majority of the clones (21 out of 27) was belonged to the same class (1), showing rye-type RFLP (restriction fragment length polymorphism). The DNA sequence of clone CrClA in class Ⅰ, was very similar to that of wheat ribulose 1,5-bisphosphate carboxylase,large subnit gene, rbcL(94.5% homology). However, the 3' end of CrClA was shorter than that of wheat rbcL, and terminated at TAA instead of TAG, like the rbcL of Aegilops crassa. In the clone CrC5.4, the first half of the sequence was similar to that of one rice EST clone, the functions of which are not known, and the latter was similar to the reverse sequence of maize 4.5S-23S ribosomal RNA. This suggests that CrC5.4 had been derived from two defferent cDNAs of (cereale)-CS. Three other clones had homology to the chlorophyll a/b binding protein genes (cab) of wheat, maize and tomato, and one to wheat rbcS (ribulose1,5-bisphosphate carboxylase small subnit gene). However, no clear polymorphisms were detected between wheat and rye by using those clones as probes. |
| キーワード | Cytoplasm substitution line Differential screening Midget chromosome Rye Wheat |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1999 |
| 巻 | 6巻 |
| 号 | 1号 |
| 開始ページ | 53 |
| 終了ページ | 64 |
| ISSN | 0916-930X |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | エビネから分離されたインゲンマメ黄斑モザイクウイルスの諸性質 |
|---|---|
| フルテキストURL | 006_001_043_051.pdf |
| 著者 | 松本 純一| 前田 孚憲| 井上 成信| |
| 抄録 | Bean yellow mosaic virus (BYMV) was isolated from Calanthe sp.showing mild chlorosis on the leaves, collected in Yamaguchi Prefecture in Japan. The virus was transmitted by the aphid Myzus persicae in a non-persistent manner, and by sap-inoculation to 29 out of 46 plant species from 9 out of 12 families tested. Stability in crude sap, morphology of virus particles, shape of cylidrical inclusions and the presence of cytoplasmic crystalline inclusions in the infected cells were similar to those of BYMV isolates previously reported. The virus contained a single protein species with a molecular weight of 35,000. In a microprecipition test and double antibody sandwich enzyme-linked immunosorbent assay (DAS-ELISA), the virus showed a close serological relationship to isolates of BYMV from both crocus and gladiolus, and showed a distant relationship to clover yellow vein virus. Three BYMV isolates used in this study were found to be serologically related to each other, but the virus was more closely related to the BYMV crocus isolate than to gladiolus isolate. |
| キーワード | Calanthe sp. bean yellow mosaic virus clover yellow vein virus serological relationship |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1999 |
| 巻 | 6巻 |
| 号 | 1号 |
| 開始ページ | 43 |
| 終了ページ | 51 |
| ISSN | 0916-930X |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | The Characteristics of Trace Metal Distribution of Artificial and Natural-Origin Suspended Particulate Matter (SPM) by grain size |
|---|---|
| フルテキストURL | 006_001_029_041.pdf |
| 著者 | 村本 茂樹| 米谷 俊彦| 平岡 直子| 青山 勲| |
| 抄録 | Air pollution caused by suspended particulate matter (SPM) has increased remarkedly in industrial areas, and this has become an emergency issue in the global environment. Atomospheric SPM influences the local ecosystem including various plants and animals. It is necessary to examine the distribution characteristics of such trace metals in fine particulates (especially those with a diameter (φ) of less than 2.1μm). The Environment Agency of the Japanese goverment will complete analysis of the a concentration of suspended particulate matter less than 2.4μm by the end of 1999, and will be examining the relationship between the concentration of suspended particulate matter (0.1-9.0μm) with consideration given to the particle size throughout two years. It became clear that the metals of artificial origin such as Pb, V, Cd, Ni, Cr, existed in fine particulates (0.1 or more 2.0μm). By contrast, the metals of natural origin, such as Ti, Mn, Mg, Sr, mainly existed in coarse Area in Japan. |
| キーワード | Atomospheric Suspended particulate matter (SPM) Natural-origin metal Artificial-origin metal Biological effects |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1999 |
| 巻 | 6巻 |
| 号 | 1号 |
| 開始ページ | 29 |
| 終了ページ | 41 |
| ISSN | 0916-930X |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | Influence of climatic factors on "crop situation index" of wheat and barley in Okayama prefecture |
|---|---|
| フルテキストURL | 006_001_013_019.pdf |
| 著者 | 木村 和義| 田中丸 重美| |
| 抄録 | The influences of air temperature, precipitation, number of rainy days and sunshine duration on the crop situation index of wheat, six-rowed barley and two-rowed barley in Okayama prefecture were analyzed by using the data for the 30-year-period of 1966-1995. The crop situation index of these three crops showed high negative correlation with the precipitation in April and a positive correlation with sunshine duration in April. Precipitation over 150 mm or lesser sunshine duration under 190 hrs in April seems to reduce the yield of wheat and barley in Okayama. |
| キーワード | Wheat Barley Crop situation index Precipitaion Climatic factor |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1999 |
| 巻 | 6巻 |
| 号 | 1号 |
| 開始ページ | 13 |
| 終了ページ | 19 |
| ISSN | 0916-930X |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | Estimation of Turbulent Fluxes by Gradient Method with Surface Temperatures of Rice Plant Canopy |
|---|---|
| フルテキストURL | 006_001_001_011.pdf |
| 著者 | 宮下 晃一| 米谷 俊彦| |
| 抄録 | Micrometeorological observations including turbulent fluxes and canopy surface temperatures were made in paddy in the summer of 1997. The sensible and latent heat fluxes were estimated by the gradient method under the assumption of similarity between the turbulent exchange coefficient for momentum and that for heat and water vapor. The surface temperatures measured by a thermal imager and water vapor pressures estimated from surface temperatures and relative humidity were used for temperature and water vapor at the height(d+z0) of U=0, where d is the displacement height, z0 the roughness length and U the mean wind velocity. The sensible and latent heat fluxes estimated by the gradient method depicted typical diurnal varietions. The turbulent fluxes by the present method and eddy correlation method showed fairly good agreement, especially for latent heat fluxes. These results confirmed that this method is a promising one. |
| キーワード | Surface temperature Rice plant canopy Thermal imager Turbulent fluxes |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1999 |
| 巻 | 6巻 |
| 号 | 1号 |
| 開始ページ | 1 |
| 終了ページ | 11 |
| ISSN | 0916-930X |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | 幼苗期と成熟期のオオムギ系統間における禾穀類アブラムシの密度とグラミン含量の関係 |
|---|---|
| フルテキストURL | 004_001_049_058.pdf |
| 著者 | Moharramipour Saeid| 村田 眞一| 兼久 勝夫| 積木 久明| |
| 抄録 | The relationship between the indole alkaloid gramine concentration and aphid population was examined seedling and maturation stages in 14 barley lines of Hordeum spontaneum and H. unlgare. The density of Schizaphis graminum did not differ significantly with the gramine concentration in the seedling in the greenhouse. However, the population of Rhopalosiphum padi sometimes differed with the seedling. The plant resistance to the natural infestation of cereal aphids was obvious at the heading stage. There was a negative correlation between the high population density of aphids and gramine concentration. The gramine concentration was high in matured resistant resistant lines, especially wild lines, as compared with susceptible lines due to higher biodegradation activity. |
| キーワード | Barley Resistance Gramine Cereal aphids |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1996 |
| 巻 | 4巻 |
| 号 | 1号 |
| 開始ページ | 49 |
| 終了ページ | 58 |
| ISSN | 0916-930X |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | QTL Analysis for Expressivity of Hull-cracked Grain in Two-rowde Spring Barley |
|---|---|
| フルテキストURL | 005_002_183_191.pdf |
| 著者 | 金谷 良市| 高橋 秀和| 武田 和義| |
| 抄録 | The exposure of the caryopsis through lemma and palea is called 'hull-cracked grain', which lowers the germinability and grade of malting barley. To breed new varieties with a low occurence of hull-cracked grains,quantitative trait loci(QTL) analysis was conducted using 146 doubled haploid lincs derived from Harrington × TR306.Interval mapping analysis revealed three significant QTLs on chromosomes 3H,5H and 7H. About 37% of the variation of the expressvity of hull-cracked grains was explained by these three QTLs in a spikelet-thinning condition where 1/4 of the spikelets were thinned at the flowering time. On the contraty the QTL on 5H was silent in normal or non-treated condition and 23% of the variation was determined by the QTLs on 3H and 7H. Some of the QTLs detected here had a pleiotropic effect on the grain size. |
| キーワード | Barley Quality Hull-cracked grain QTL analysis |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1998 |
| 巻 | 5巻 |
| 号 | 2号 |
| 開始ページ | 183 |
| 終了ページ | 191 |
| ISSN | 0916-930X |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | Vertical Structure of Temperatures of Tree's Leaves and Gate Wall at Rashomon Doline |
|---|---|
| フルテキストURL | 005_002_169_181.pdf |
| 著者 | 宮下 晃一| 米谷 俊彦| |
| 抄録 | Temperatures of tree's leaves and gate wall were measured in the summer of 1996 at doline. Diurnal fluctuations of leaf temperatures were greater, the higher the position of leaf in the doline, and they showed maximum temperatures later, the deeper the leaf position. The leaf temperature of trees growing in the first collapse doline was uniform in the horizontal direction and had a stable thermal layer. The difference between leaf temperatures at a depth of 20 m and 11 m was about 12℃ around noon. The leaf temperature was always higher at the upper part than at the lower part of the doline throughout the day. Daily fluctuation of wall temperature was small,compared with that of leaf temperature. The vertical profile of wall temperature was similar to that of leaf temperature. The warm water flowing down from the upper part of the doline influenced the soil temperature in the lower part of the doline. The thermal imagery elucidated the peculiar vertical structure of leaf and wall temperature formed in the summer at Rashomon doline. |
| キーワード | Rashomon Doline Leaf temperature Wall temperature Thermal image |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1998 |
| 巻 | 5巻 |
| 号 | 2号 |
| 開始ページ | 169 |
| 終了ページ | 181 |
| ISSN | 0916-930X |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | トウモロコシに含まれるDIMBOAとアブラムシ抵抗性の関係 |
|---|---|
| フルテキストURL | 004_001_033_042.pdf |
| 著者 | Rustamaki Maqsood A| 兼久 勝夫| 積木 久明| 白神 孝| |
| 抄録 | 2,4-Dihydrox-7-methoxy1,4-benzoxazin-3-one (DIMBOA), a hydroxamic acid is considered to be one of the components responsible for the resistance to pest insects in cereal plants. The relationship between concentration of DIMBOA and aphid infestation on 21 corn lines was investigated in 1990 and 1991. DIMBOA was detected in leaves od all corn lines tested, contained larger amounts in young plants and gradually decreased with growth. This property was the same as observed in wheat. A more than ten times difference in DIMBOA concentration was observed in corn lines. However, there was no positive correlation between DIMBOA concentration and aphid density. Most of the lines used had resistance to aphids. Resistance may be built together with other components such as (E)-aconitic acid. |
| キーワード | Apfid Resistant substance Hydroxamic acid DIMBOA Corn |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1996 |
| 巻 | 4巻 |
| 号 | 1号 |
| 開始ページ | 33 |
| 終了ページ | 42 |
| ISSN | 0916-930X |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | シロイヌナズナ由来過酸化リン脂質グルタチオンペルオキシダーゼ様遺伝子のクローニングと発現 |
|---|---|
| フルテキストURL | 005_002_145_153.pdf |
| 著者 | 杉本 学| 河合 富佐子| |
| 抄録 | A cDNA encoding Arabidopsis purative phosphplipid hydroperoxide gultathione peroxidase (PHGPX) was cloned and sequenced by the reverse transcription-polymerase chain reaction and rapid amplification of cDNA ends methods. The cDNA comprised 803 bp, and included an open reading frame which encodes a polypeptide of 169 amino acid residues with a molecular mass of 18,600 Da. The deduced amino acid sequence showed homology to plant putative PHGPXs and mammalian PHGPXs. The cloned gene was expressed in Escherichia coli cells to prouce an extra protein, which showed a molecular mass similar to the deduced one. |
| キーワード | Arabidopsis Phospholipid hydroperoxide glutathione peroxidase Nucleotide sequence Gene expression |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1998 |
| 巻 | 5巻 |
| 号 | 2号 |
| 開始ページ | 145 |
| 終了ページ | 153 |
| ISSN | 0916-930X |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | イネ幼植物から調整した細胞壁に含まれるペクチン質の性状 |
|---|---|
| フルテキストURL | 005_002_135_144.pdf |
| 著者 | 今野 晴義| 積木 久明| 山崎 良樹| |
| 抄録 | Pectic polysacchasides from the starch-free cell wall preparation of rice (Oryza sativa) shoots have been extracted in sequence with cyclohexane-trans-1,2-diaminetetra-acetate(CDTA)and Na2CO3. The total amount of polysaccharides extracted with the agents was estimated as approximately 1% of the cell walls. The extracted polysaccharides were fractionated by DEAE-Trisacryl M ion-exchange chromatography yielding five fractions, and the monosaccharide composition and molecular mass were constructed from homogalacturonan and rhamnogalacturoanan containing the "hairy" region with galactosyl and arabinosyl side-chains. The solubilized pectic polysaccharides after treatment with two pectolytic enzymes accounted for 0.4～0.6% of the starch-free cell walls. |
| キーワード | Cell wall Oryza sativa Pectic polymer |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1998 |
| 巻 | 5巻 |
| 号 | 2号 |
| 開始ページ | 135 |
| 終了ページ | 144 |
| ISSN | 0916-930X |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | Secretion of Defensive Substance by Carabidae and Brachinidae |
|---|---|
| フルテキストURL | 004_001_009_023.pdf |
| 著者 | 兼久 勝夫| |
| 抄録 | The secretion of defensive substances by more than 250 species of carabid and brachinid beetles was investigated, and discussed from a phylogenetical viewpoint. The morphological of secretion glands and secreted components were identified in the genus level. Specific subgenus and species had peculiar characteristics. The pair of defensive organs consisted of many small synthetic lobes, large reservoirs, collecting ducts from lobes to reservoirs and secretion ducts from reservoirs. The pair dust opened at the last sternal intersegmental membrane. There was species specificity in the reservoir shape, synthetic lobe shape and entering site of the collecting ducts into reservoirs. The spherical shape lobes produced short chain fatty acids, the elongated shape lobes produced m-cresol and the thick board shape lobes produced benzoquinones. Two types of fatty acid-secreting beetles were found, one secreted formic acid, and the other mixed short chain fatty acids. These short chain fatty acids were metabolized from some amino acids, methacrylic acid was from valine; tiglic acid, α-ethyacrylic acid and angelic acid were from isoleucine; senecioic acid was from leucine and crotonic acid was from lysine. These unasaturated acids were sometimes detected with a trace amount of corresponding saturated acids. A few species secreted larger amounts of saturated acids with a trace amounts of unsaturated acids. Fatty acid composition was generally genus-specific. In a few cases, however, species-specific acid composition was also observed. m-Cresol-secreting beetles were observed only in Panagaeni and Chlaeniini except subgenus Chlaenius Chlaeniini except subgenus Chlaenius Chlaeniellus beetle. 1,4-Benzoquinone and 2-methyl-1,4-benzoquinone-secreting beetles were observed in subgenus C. Chlaeniellus. This beetle secreted these substances at body temperature from a reservoir with no sound. Brachinidae beetles, called bombardier beetles, have a pair of brownish reaction chamber connected with a reservoir. They sprayed the two benzoquinones at about 100℃ making sound. |
| キーワード | Defensive secreting substance Synthetic organ Carabidae Brachinidae Phylogenetic relation |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1996 |
| 巻 | 4巻 |
| 号 | 1号 |
| 開始ページ | 9 |
| 終了ページ | 23 |
| ISSN | 0916-930X |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | Purification and Properties of α-Glucodidase from Taro Tuber |
|---|---|
| フルテキストURL | 005_002_129_134.pdf |
| 著者 | 間島 英之| 山崎 良樹| 今野 晴義| |
| 抄録 | α-Gulcosidase (EC 3.2.1.20) has been purified 2,500-fold taro (Colocasia esculanta Shott) tuber by a procedure incluting fractionation with ammonium sulfate and ethyl alcohl, CM-cellulofine column chromatography, and preparative disc gel electrophoresis. The enzyme readily hydrolyzed maltose, nigerose, malto-oligosaccharides, and soluble starch. However, the enzyme hydrolyzed isomaltose only very weakly. The Km values of the enzyme for maltohexaose and soluble starch were lower than that for maltose. |
| キーワード | α-glucosidase taro tuber Colocasia esculanta Shott |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1998 |
| 巻 | 5巻 |
| 号 | 2号 |
| 開始ページ | 129 |
| 終了ページ | 134 |
| ISSN | 0916-930X |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | ナメクジのα-グルコシダーゼの精製と性質 |
|---|---|
| フルテキストURL | 005_002_121_127.pdf |
| 著者 | 山崎 良樹| 今野 晴義| |
| 抄録 | Three forms of α-glucosidase(EC3.2.1.20), designated as Ⅰ, Ⅱ,Ⅲ,have been isoleted from slugs by a procedure including fractionation with ammonium sulfate, Sephacry1 S-200 HR column chromatography, CM-cellulose column chromatography, and pretarative disc gel electrophoresis. The three enzymes readily hydrolyzed maltose and malto-oligosaccharides,but hydrolyzed isomaotose more slowly. α-Glucosidase Ⅲ hydrolyzed soluble starch at a faster rate than maltose, but α-glucosidase Ⅰ hyrolyzed soluble starch more slowly. |
| キーワード | Slug Incilaria bilineata α-glucosidase |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1998 |
| 巻 | 5巻 |
| 号 | 2号 |
| 開始ページ | 121 |
| 終了ページ | 127 |
| ISSN | 0916-930X |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | Purification and Characterization of α-Glucosidases from Spinach Seeds |
|---|---|
| フルテキストURL | 004_002_239_252.pdf |
| 著者 | 杉本 学| 古井 聡| 鈴木 幸雄| |
| 抄録 | Four molecular forms of α-glucosidase were isolated from spinach seeds by several kinds of chromatography. The molecular masses of α-glucosidases Ⅰ,Ⅱ,Ⅲ,and Ⅳ were 78,78,82 and 82kDa by SDS-PAGE, and 62,62,190,and 70kDa by gel filtration, respectively. α-Glucosidases Ⅰand Ⅱ showed similar enzymatic properties. The Km for soluble starch was about 10 times lower than that for maltose, and they had higher activity not only towards malto-oligosaccharides but also towards α-glucans. The optimum pH was 4.5-5.5 and about 50% of the activity remained after incubation at 71℃ for 20 min. On the other hand, α-glucosidases Ⅲ and Ⅳ showed similar enzymatic propreties. The Km for maltose was 3-4 times lower than for solble starch, and they had high activity toward malto-oligosaccharides but faint activity towards α-glucnas. The optimum pH was 4.5-5.0 and no activity was found after incubation at 70℃ for 20 min. However, anti-α-glucosidase Ⅲ serum precipitated specifically with α-glucosidase Ⅲ. |
| キーワード | α-Glucosidase Spinach Seed Spinacia oleracea L. Molecular form |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1996 |
| 巻 | 4巻 |
| 号 | 2号 |
| 開始ページ | 239 |
| 終了ページ | 252 |
| ISSN | 0916-930X |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | Production of Strain of Erysiphe graminis f. sp. tritici That Are Pathogenic on Barley and Agropyron |
|---|---|
| フルテキストURL | 004_002_229_237.pdf |
| 著者 | 部田 英雄| 井上 成信| |
| 抄録 | Two isolates of Erysiphe graminis f. sp. tritici, T3 and T4, were crossed and selected for pathogenicity. The corssing and selection process were repeated five times with the progenies. Isolates of each generation were inoculated on the non-hosts, Hordeum vulgare and Agropyron tsukushiense var. transiens OHWI, and parasitism and pathogenicity were investigated with respect to host specificity.As shown in Tables 2 to 5, the process of crossing and selection produced isolates which were pathogenic on barley cultivars, 'Kagoshimahadaka' or 'Russian 9' or Agropyron tsukushiense ecotypes 'Agropyron Early ecotype' or 'Agropyron Yezoense 3'.Factors affecting the degree of pathogenicity appear to be under polygenic control. The cumulative effect of minor genes may play a role in the differentiation of formae speciales suggesting a new concept of pathogenicity in the powdery mildew of grasses. |
| キーワード | Wheat powdery mildew Host specific Pathogenicity Properties Barley Agropyron |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1996 |
| 巻 | 4巻 |
| 号 | 2号 |
| 開始ページ | 229 |
| 終了ページ | 237 |
| ISSN | 0916-930X |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | Some Properties of Azuki Bean Mosaic Virus Isolated from Soybean Plants in Ibaraki Prefecture |
|---|---|
| フルテキストURL | 004_002_215_227.pdf |
| 著者 | 高橋 幸吉| 井上 成信| 前田 孚憲| 光畑 興二| 千田 茂樹| 高橋 義行| |
| 抄録 | Azuki bean mosaic virus (ABMV) was isolated from Glycine max showing mild mosaic and stunt on the leaves, collected in Ibaraki-Prefecture, in July, 1989. ABMV was transmitted by sap-inoculation to 8 species systemically and 14 species locally out of 33 species in 8 families and by aphids, Aulacorthum solani and Myzus persicae in a non-persistent manner.Seed transmission was recognized in 0.8% of the seeds of soybean cv."Iwate-wase-kurome" inoculated at seeding stage. The soybean plant infected with ABMV produced mottled seeds, which were radical- or saddle-like. The virus particles were flexuous rods, bout 750 nm in length. In ultrathin virus-infected tissues, cytoplasmic inclusions containing pinwheels and scrolls were observed in the cytoplasms. In DAS-ELISA, the virus reacted strongly with antiserum to ABMV. The weight of plants and seed of two soybean cv."Okuhara 1" and "Iwate-wase-kurome" inoculated with ABMV at the seedling stage was about 40～50% less than that of healthy plants. |
| キーワード | Potyvirus Azuki bean mosaic virus Glycine max Properties |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1996 |
| 巻 | 4巻 |
| 号 | 2号 |
| 開始ページ | 215 |
| 終了ページ | 227 |
| ISSN | 0916-930X |
| 言語 | 日本語 |
| 論文のバージョン | publisher |
| タイトル（別表記） | 大麦網斑病抵抗性の選抜効果 |
|---|---|
| フルテキストURL | 003_001_043_053.pdf |
| 著者 | 佐藤 和広| 武田 和義| |
| 抄録 | Selection effectiveness for the resistance to net blotch was estimated by using two sets of F2 and F3 populations derived from the crosses between resistant and susceptible parents. In every F2 and F3 population, disease ratings showed a continuous distribution. As many F3 lines with intermediate resistance had a smaller variance and homozygous genotype, the resistance might be controlled by a few genes. The heritabilities of the disease rating were estimated by correlation coefficients and regression coefficients between each F2 plant and the descended F3 lines. Another estimate for heritability was calculated by the selection differential in the F2 plants and genetic gain in the F3 lines. Despite the different level of resistance in the resistant parents of the two crosses, the three kinds of heritabilities estimated were similar and ranged from 0.6 to 0.8. Because of the fewer number of genes controlling the disease resistance and the higher heritabilities, selection in a early generation may be effective for net blotch resistance in barlcy. |
| キーワード | Net blotch Pyrenophora teres Selection Barley Disease resistance |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1995 |
| 巻 | 3巻 |
| 号 | 1号 |
| 開始ページ | 43 |
| 終了ページ | 53 |
| ISSN | 0916-930X |
| 言語 | 英語 |
| 論文のバージョン | publisher |
| NAID | 120004537480 |
| タイトル（別表記） | ダイズ種子の冠水抵抗性の品種間差とダイアレル分析 |
|---|---|
| フルテキストURL | 003_001_035_041.pdf |
| 著者 | 侯 福分| 曽 富生| 呉 詩都| 武田 和義| |
| 抄録 | Seven hundred and thirty varieties of soybean from different sources were evaluated for seed flooding tolerance by the seed germination test after a 4-day soaking at 25℃. The inheritance of seed flooding tolerance was also analyzed with a 6 x diallel cross. A large variation in seed flooding tolerance existed in the soybean germplasm as reflected in the germination rate which ranged from 0 to 100%. Most of the varieties tested were sensitive to seed flooding, and only 4% of the tested varieties showed a high tolerance (germination rate >90%). Seed flooding tolerance was controlled by both additive and dominance genes and a small number of effective factors and high narrow sense heritability in diallel analysis indicate that the selection for tolerance can effectively be done in early generations. |
| キーワード | Glycine max Seed flooding tolerance Diallel analysis Germination Varietal difference |
| 出版物タイトル | 岡山大学資源生物科学研究所報告 |
| 発行日 | 1995 |
| 巻 | 3巻 |
| 号 | 1号 |
| 開始ページ | 35 |
| 終了ページ | 41 |
| ISSN | 0916-930X |
| 言語 | 英語 |
| 論文のバージョン | publisher |