result 3112 件
| Title Alternative | Elucidation of plant-bacterial pathogen interactions for the control of bacterial blight on cruciferous crops |
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| FullText URL | srfa_114_021_025.pdf |
| Author | Sakata, Nanami| |
| Abstract | Pseudomonas cannabina pv. alisalensis (Pcal), the causative agent of bacterial blight on cruciferous crops, is an economically important pathogen worldwide. We have conducted several studies on the interactions between plants and pathogenic bacteria to develop effective control strategies for this disease. Using forward and reverse genetics, we identified several virulence factors, including the type III secretion system, membrane transporters, transcriptional factors, and amino acid metabolism. Additionally, we emphasized the role of coronatine, a toxin produced by Pcal, which promotes stomatal reopening and suppresses salicylic acid accumulation in plants. We also examined plant defense mechanisms activated by one of the plant defense activators, acibenzolar-S-methyl (ASM). ASM enhanced stomatal-based defense, resulting in reduction of bacterial entry and disease development. Moreover, we explored innovative control strategies for bacterial disease and demonstrated that amino acids and cellulose nanofiber are efficient and environmentally friendly control strategies. These studies advance our understanding of plant-pathogen dynamics and offer promising, sustainable approaches for managing bacterial blight disease in cruciferous crops. |
| Keywords | Plant pathogenic bacteria Pseudomonas Cruciferous Plant protection Stomata |
| Publication Title | Scientific Reports of the Faculty of Agriculture, Okayama University |
| Published Date | 2025-02-01 |
| Volume | volume114 |
| Start Page | 21 |
| End Page | 25 |
| ISSN | 2186-7755 |
| language | Japanese |
| File Version | publisher |
| Title Alternative | Uncovering the role of arcuate kisspeptin neurons as a source of the gonadotropin-releasing hormone pulse generator using gene-modified rats |
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| FullText URL | srfa_114_011_020.pdf |
| Author | Nagae, Mayuko| Uenoyama, Yoshihisa| |
| Abstract | Strategies for increasing reproductive performance are needed for domestic animals because for example the conception (pregnancy) rate has decreased in dairy cows around the world. Reproductive function is controlled by hormones released by the hypothalamus-pituitary-gonadal axis in mammals, including domestic animals. Of those hormones, tonic (pulsatile) gonadotropin-releasing hormone (GnRH) release is fundamentally important for gonadotropin release and gonadal activity. Therefore, uncovering the mechanism controlling GnRH pulses, that is GnRH pulse generator, is essential to improve reproductive technologies for domestic animals. The present review is focused on the indispensable role of arcuate nucleus (ARC) kisspeptin neurons (also known as KNDy neurons) as the GnRH pulse generator in mammals. First, we give a brief overview of studies on hypothalamic kisspeptin neurons throughout the past two decades. Second, we review studies that have provided direct evidence that ARC kisspeptin neurons serve as the GnRH pulse generator, with a special focus on our gene-modified rat models. Finally, we discuss the mechanism underlying GnRH pulse generation. The knowledge obtained from gene-modified rat models should be clinically important and could be adapted to new tools to improve reproductive performance in livestock by stimulating GnRH/gonadotropin pulses. |
| Keywords | gene-modified rats GnRH kisspeptin LH pulse generator |
| Publication Title | Scientific Reports of the Faculty of Agriculture, Okayama University |
| Published Date | 2025-02-01 |
| Volume | volume114 |
| Start Page | 11 |
| End Page | 20 |
| ISSN | 2186-7755 |
| language | English |
| File Version | publisher |
| FullText URL | srfa_114_001_010.pdf |
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| Author | Saitoh, Kuniyuki| Murakami, Tomohiro| Nakamura, Yumi| Nishibori, Misa| Takagoshi, Yuki| Hirai, Yoshihiko| |
| Abstract | Eleven crops were cultivated: maize, sunflower, soybean, groundnuts, sesame, kenaf, barley, wheat, rice, potato, and sweet potato. The crop growth rate (CGR) and specific dark-respiration rate (Rs) were measured, and growth efficiency GE =CGR/(CGR+R) (R, respiratory loss) was calculated. In each crop, whole-plant Rs reached a maximum in the earlier stages of growth, declined rapidly until the early reproductive growth, and remained almost constant during the ripening period. The Rs of leaves was higher than that of stems during the reproductive growth period, except for maize and potato. The Rs of storage organs was highest in the earlier stages, followed by a rapid decline to similar or lower values than those of leaves and stems during the ripening period. The GE in whole plant was higher than 60% in wheat, maize, barley, sunflower, rice, kenaf, sesame, but lower in soybean, sweet potato and groundnuts, and lowest in potato, which was affected by the higher respiratory loss. The GE in whole plant during the reproductive growth period was significantly lower, which we attributed to increased maintenance costs due to the increase of non-assimilative organs, and decrease in the dry weight of vegetative organs. A positive correlation was observed between the carbohydrate content of storage organs and GE, indicating that a crop with higher carbohydrate content in storage organs tended to have a higher GE. Crops with higher protein and crude fat content in storage organs tended to have lower GE. The GE over the growing season was low for kenaf, a fiber crop which contains high molecular weight compounds such as lignin and cellulose, and lower for sesame, groundnuts, and soybean, which contain high oil and protein and have high respiration costs for the synthesis of storage materials, suggesting that these higher respiration costs are related to lower dry matter production and hence lower yields. |
| Keywords | Cereal crops Oil crops Crop growth rate Dark-respiration Growth efficiency Leguminous crops Nutrients composition Respiratory loss Root and tuber crops |
| Publication Title | Scientific Reports of the Faculty of Agriculture, Okayama University |
| Published Date | 2025-02-01 |
| Volume | volume114 |
| Start Page | 1 |
| End Page | 10 |
| ISSN | 2186-7755 |
| language | English |
| File Version | publisher |
| FullText URL | srfa_114_contents.pdf |
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| Publication Title | Scientific Reports of the Faculty of Agriculture, Okayama University |
| Published Date | 2025-02-01 |
| Volume | volume114 |
| ISSN | 2186-7755 |
| language | Japanese |
| File Version | publisher |
| FullText URL | srfa_114_cover.pdf |
|---|---|
| Publication Title | Scientific Reports of the Faculty of Agriculture, Okayama University |
| Published Date | 2025-02-01 |
| Volume | volume114 |
| ISSN | 2186-7755 |
| language | Japanese |
| File Version | publisher |
| FullText URL | K0007160_abstract_review.pdf |
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| Author | HASIQIMUGE| |
| Published Date | 2024-09-25 |
| Content Type | Thesis or Dissertation |
| Grant Number | 甲第7160号 |
| Granted Date | 2024-09-25 |
| Thesis Type | Doctor of Philosophy in Agriculture |
| Grantor | 岡山大学 |
| language | English |
| FullText URL | K0007157_abstract_review.pdf |
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| Author | NGUYEN THI THANH HIEN| |
| Published Date | 2024-09-25 |
| Content Type | Thesis or Dissertation |
| Grant Number | 甲第7157号 |
| Granted Date | 2024-09-25 |
| Thesis Type | Doctor of Philosophy in Agriculture |
| Grantor | 岡山大学 |
| language | English |
| FullText URL | K0007156_abstract_review.pdf |
|---|---|
| Author | MUTHAMIA EDNA KIRUMBA| |
| Published Date | 2024-09-25 |
| Content Type | Thesis or Dissertation |
| Grant Number | 甲第7156号 |
| Granted Date | 2024-09-25 |
| Thesis Type | Doctor of Philosophy in Agriculture |
| Grantor | 岡山大学 |
| language | English |
| FullText URL | K0007155_abstract_review.pdf K0007155_fulltext.pdf.pdf |
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| Author | YANO, Takayoshi| |
| Published Date | 2024-09-25 |
| Content Type | Thesis or Dissertation |
| Grant Number | 甲第7155号 |
| Granted Date | 2024-09-25 |
| Thesis Type | Doctor of Philosophy in Agriculture |
| Grantor | 岡山大学 |
| language | Japanese |
| FullText URL | K0007154_abstract_review.pdf K0007154_fulltext.pdf |
|---|---|
| Author | NIARSI MERRY HEMELDA| |
| Published Date | 2024-09-25 |
| Content Type | Thesis or Dissertation |
| Grant Number | 甲第7154号 |
| Granted Date | 2024-09-25 |
| Thesis Type | Doctor of Philosophy in Agriculture |
| Grantor | 岡山大学 |
| language | English |
| FullText URL | K0007153_abstract_review.pdf |
|---|---|
| Author | Dandy Ahamefula Osibe| |
| Published Date | 2024-09-25 |
| Content Type | Thesis or Dissertation |
| Grant Number | 甲第7153号 |
| Granted Date | 2024-09-25 |
| Thesis Type | Doctor of Philosophy in Agriculture |
| Grantor | 岡山大学 |
| language | English |
| FullText URL | K0007152_abstract_review.pdf K0007152_fulltext.pdf |
|---|---|
| Author | HUANG, Hengliang| |
| Published Date | 2024-09-25 |
| Content Type | Thesis or Dissertation |
| Grant Number | 甲第7152号 |
| Granted Date | 2024-09-25 |
| Thesis Type | Doctor of Philosophy in Agriculture |
| Grantor | 岡山大学 |
| language | English |
| FullText URL | K0007151_abstract_review.pdf K0007151_fulltext.pdf |
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| Author | MAHDI MOZHGANI| |
| Published Date | 2024-09-25 |
| Content Type | Thesis or Dissertation |
| Grant Number | 甲第7151号 |
| Granted Date | 2024-09-25 |
| Thesis Type | Doctor of Philosophy in Agriculture |
| Grantor | 岡山大学 |
| language | English |
| FullText URL | K0007150_abstract_review.pdf K0007150_fulltext.pdf |
|---|---|
| Author | MD. FARIDUL ISLAM| |
| Published Date | 2024-09-25 |
| Content Type | Thesis or Dissertation |
| Grant Number | 甲第7150号 |
| Granted Date | 2024-09-25 |
| Thesis Type | Doctor of Philosophy in Agriculture |
| Grantor | 岡山大学 |
| language | English |
| FullText URL | O0004557_abstract_review.pdf O0004557_fulltext.pdf |
|---|---|
| Author | TAMOTO, Toshiyuki| |
| Published Date | 2024-03-25 |
| Content Type | Thesis or Dissertation |
| Grant Number | 乙第4557号 |
| Granted Date | 2024-03-25 |
| Thesis Type | Doctor of Philosophy in Agriculture |
| Grantor | 岡山大学 |
| language | Japanese |
| FullText URL | K0007074_abstract_review.pdf K0007074_fulltext.pdf K0007074_summary.pdf |
|---|---|
| Author | Aodaohu| |
| Published Date | 2024-03-25 |
| Content Type | Thesis or Dissertation |
| Grant Number | 甲第7074号 |
| Granted Date | 2024-03-25 |
| Thesis Type | Doctor of Philosophy in Agriculture |
| Grantor | 岡山大学 |
| language | English |
| FullText URL | K0007072_abstract_review.pdf K0007072_fulltext.pdf |
|---|---|
| Author | Ahmad Farid Rawan| |
| Published Date | 2024-03-25 |
| Content Type | Thesis or Dissertation |
| Grant Number | 甲第7072号 |
| Granted Date | 2024-03-25 |
| Thesis Type | Doctor of Philosophy in Agriculture |
| Grantor | 岡山大学 |
| language | English |
| FullText URL | K0007071_abstract_review.pdf K0007071_summary.pdf |
|---|---|
| Author | OGAWA, Yu| |
| Published Date | 2024-03-25 |
| Content Type | Thesis or Dissertation |
| Grant Number | 甲第7071号 |
| Granted Date | 2024-03-25 |
| Thesis Type | Doctor of Philosophy in Agriculture |
| Grantor | 岡山大学 |
| language | Japanese |
| FullText URL | K0007070_abstract_review.pdf K0007070_fulltext.pdf |
|---|---|
| Author | OKAMOTO, Naoko| |
| Published Date | 2024-03-25 |
| Content Type | Thesis or Dissertation |
| Grant Number | 甲第7070号 |
| Granted Date | 2024-03-25 |
| Thesis Type | Doctor of Philosophy in Agriculture |
| Grantor | 岡山大学 |
| language | Japanese |
| FullText URL | fulltext.pdf |
|---|---|
| Author | Eguchi, Ritsuko| Sekhar, Halubai| Kimura, Koji| Masai, Hirokazu| Happo, Naohisa| Ikeda, Mitsuki| Yamamoto, Yuki| Utsumi, Masaki| Goto, Hidenori| Takabayashi, Yasuhiro| Tajiri, Hiroo| Hayashi, Koichi| Kubozono, Yoshihiro| |
| Published Date | 2024-05-01 |
| Publication Title | ACS Omega |
| Volume | volume9 |
| Issue | issue19 |
| Publisher | American Chemical Society |
| Start Page | 21287 |
| End Page | 21297 |
| ISSN | 2470-1343 |
| Content Type | Journal Article |
| language | English |
| OAI-PMH Set | 岡山大学 |
| Copyright Holders | © 2024 The Authors. |
| File Version | publisher |
| PubMed ID | 38764676 |
| DOI | 10.1021/acsomega.4c01395 |
| Web of Science KeyUT | 001228034300001 |
| Related Url | isVersionOf https://doi.org/10.1021/acsomega.4c01395 |
