Journal of Plant Research最新文献_第2页

SUPPRESOR OF GAMMA RESPONSE 1 promotes early onset of endoreplication upon DNA double-strand breaks by inducing CCS52A1 expression in Arabidopsis roots. 抑制γ反应1通过诱导CCS52A1在拟南芥根中的表达，促进DNA双链断裂时的早期内复制。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2025-07-01 Epub Date: 2025-04-07 DOI: 10.1007/s10265-025-01630-y

Toshiki Wada, Ayako N Sakamoto, Masaaki Umeda, Naoki Takahashi

{"title":"SUPPRESOR OF GAMMA RESPONSE 1 promotes early onset of endoreplication upon DNA double-strand breaks by inducing CCS52A1 expression in Arabidopsis roots.","authors":"Toshiki Wada, Ayako N Sakamoto, Masaaki Umeda, Naoki Takahashi","doi":"10.1007/s10265-025-01630-y","DOIUrl":"10.1007/s10265-025-01630-y","url":null,"abstract":"Living organisms are constantly at the risk of DNA damage caused by factors such as DNA replication errors, reactive oxygen species, and UV radiation. In plants, DNA damage activates the NAC-type transcription factor SUPPRESSOR OF GAMMA RESPONSE 1 (SOG1) that governs DNA damage responses such as cell cycle arrest, stem cell death, and early onset of endoreplication. However, molecular mechanisms underlying the early induction of endoreplication onset in response to DNA damage remain elusive. In this study, we show that CELL CYCLE SWITCH 52 A1 (CCS52A1), an activator of the APC/C E3 ligase, plays a major role in the early onset of endoreplication in response to DNA double-strand breaks (DSBs) in Arabidopsis roots. Upon DSBs, SOG1 directly binds to the CCS52A1 locus, thereby inducing its expression. Moreover, early transition to endoreplication in response to DSBs is suppressed in ccs52a1 knockout roots. Our data propose that increased polyploidy may function as a unique adaptative mechanism to genotoxic stress in plants.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"679-693"},"PeriodicalIF":2.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12238086/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143795755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Aeluropus lagopoides: an important halophyte with key physiological and molecular mechanisms for salinity tolerance and a unique genetic resource for developing climate resilient crops. lagopoides是一种重要的盐生植物，具有关键的耐盐生理和分子机制，是培育气候适应型作物的独特遗传资源。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2025-07-01 Epub Date: 2025-04-28 DOI: 10.1007/s10265-025-01640-w

Pradeep K Agarwal, Parinita Agarwal, Anjali Chittora, Adarsh Bhawsar, Treesa Thomas

引用次数: 0

Effects of suppression of phosphate transporter 4;4 on CO₂ assimilation in rice. 抑制磷酸转运体4；4对水稻CO2同化的影响。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2025-07-01 Epub Date: 2025-04-18 DOI: 10.1007/s10265-025-01638-4

Ryosei Harada, Takaya Sugimoto, Yuki Takegahara-Tamakawa, Amane Makino, Yuji Suzuki

{"title":"Effects of suppression of phosphate transporter 4;4 on CO2 assimilation in rice.","authors":"Ryosei Harada, Takaya Sugimoto, Yuki Takegahara-Tamakawa, Amane Makino, Yuji Suzuki","doi":"10.1007/s10265-025-01638-4","DOIUrl":"10.1007/s10265-025-01638-4","url":null,"abstract":"Homeostasis of inorganic phosphate (Pi) in the chloroplasts is essential for healthy CO2 assimilation. When Pi in chloroplasts is insufficient, the increase in the CO2 assimilation rate (A) with an increase in CO2 level is restricted, whereas A per unit total protein level moderately decreases under low-to-normal CO2 levels. Some phosphate transporters (PHT) are localized in the chloroplast envelope; however, their contribution to the maintenance of Pi homeostasis for CO2 assimilation has rarely been reported. In this study, we generated transgenic rice plants with RNAi-suppressed PHT4;4, one of the two genes of chloroplast envelope-localized PHT, and examined the changes in the characteristics of CO2 assimilation. In three transgenic lines, the mRNA levels of PHT4;4 decreased by approximately 80% without a notable decrease in total leaf-P levels or total leaf-N levels, which is thought to approximately correspond to total protein levels. A in the transgenic plants tended to be slightly lower than that in the wild-type plants, irrespective of the CO2 level, and typically increased to saturation with increasing CO2 levels. A per unit total leaf-N level in transgenic plants tended to be slightly lower than that in wild-type plants. These results indicate that substantial PHT4;4 suppression caused slight symptoms of Pi-limited CO2 assimilation. Therefore, PHT4;4 is suggested to be involved in the maintenance of chloroplast Pi homeostasis for healthy CO2 assimilation, although its contribution is minor.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"667-677"},"PeriodicalIF":2.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12238151/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144064069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Non-radiative origin for alpine endemics of Draba (Brassicaceae) in the central mountains of the Japanese Archipelago. 日本群岛中部山区高山特有的苔科植物的非辐射起源。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2025-07-01 Epub Date: 2025-04-29 DOI: 10.1007/s10265-025-01643-7

Ryutaro Koda, Yoshinori Murai, Hajime Ikeda

{"title":"Non-radiative origin for alpine endemics of Draba (Brassicaceae) in the central mountains of the Japanese Archipelago.","authors":"Ryutaro Koda, Yoshinori Murai, Hajime Ikeda","doi":"10.1007/s10265-025-01643-7","DOIUrl":"10.1007/s10265-025-01643-7","url":null,"abstract":"Diversity of endemic species may result from two evolutionary processes: in-situ diversification (radiation) or phylogenetically independent divergences (non-radiation). To explore the evolutionary history of endemic-rich alpine flora in the Japanese Archipelago, we investigated the phylogenetic relationships of four endemic taxa of Draba (Brassicaceae) from the high mountains of central Honshu: D. kitadakensis, D. sachalinensis var. shinanomontana, D. sakuraii var. nipponica, and D. shiroumana. Using molecular phylogenetic analyses on plastid trnL-F and nuclear ITS sequence of 157 taxa, we found that the four taxa endemic to central Honshu did not form a monophyletic group and diverged from at least two evolutionary independent lineages. Moreover, ancestral area reconstruction further revealed that some of their ancestral species may have originated from different geographical regions. These findings indicate that the endemic Draba in central Honshu diverged through non-radiative evolutionary origin. Our study suggests that the richness of endemic species in the alpine zone of the Japanese Archipelago is associated with multiple sources with high species diversity located in nearby geographical regions.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"563-573"},"PeriodicalIF":2.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12238178/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144064100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction: SUPPRESOR OF GAMMA RESPONSE 1 promotes early onset of endoreplication upon DNA double-strand breaks by inducing CCS52A1 expression in Arabidopsis roots. 更正：GAMMA RESPONSE 1的SUPPRESOR通过诱导拟南芥根中CCS52A1的表达，促进DNA双链断裂时的早期内复制。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2025-07-01 DOI: 10.1007/s10265-025-01647-3

Toshiki Wada, Ayako N Sakamoto, Masaaki Umeda, Naoki Takahashi

引用次数: 0

Correction to: Contributions of lignification, tissue arrangement patterns, and cross-sectional area to whole-stem mechanical properties in Arabidopsis thaliana. 修正：拟南芥木质化、组织排列模式和横截面积对全茎机械特性的贡献。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2025-07-01 DOI: 10.1007/s10265-025-01632-w

Mariko Asaoka, Eric Badel, Ali Ferjani, Kazuhiko Nishitani, Olivier Hamant

引用次数: 0

Dynamic changes in chromatin structure and transcriptional activity in the generative cells of Lilium longiflorum. 百合生殖细胞染色质结构和转录活性的动态变化。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2025-07-01 Epub Date: 2025-04-15 DOI: 10.1007/s10265-025-01637-5

Mio K Shibuta, Tsugumi Aso, Yutsuki Okawa

{"title":"Dynamic changes in chromatin structure and transcriptional activity in the generative cells of Lilium longiflorum.","authors":"Mio K Shibuta, Tsugumi Aso, Yutsuki Okawa","doi":"10.1007/s10265-025-01637-5","DOIUrl":"10.1007/s10265-025-01637-5","url":null,"abstract":"Pollen is required for fertilization and the associated production of seeds and fruits, which are important for human nutrition. Research on the tricellular pollen of Arabidopsis thaliana revealed that chromatin is highly condensed and transcriptional activity is suppressed in sperm cells. However, comprehensive structural investigations involving generative cells of bicellular pollen have not been conducted. In this study, we provide relevant insights into other angiosperms that produce bicellular pollen. Lilium longiflorum, which has large and easily observable nuclei, was used for a detailed analysis of the chromatin structure and transcriptionally active regions in pollen and pollen tubes. Chromatin was condensed, resulting in a ribbon-like structure that was clearly visible in mature generative cell nuclei. Additionally, transcriptionally active regions were restricted to the intersections of chromatin as pollen desiccated. Although de novo transcription was revealed to be unnecessary for pollen tube growth, transcriptional activity temporarily resumed before generative cell division during pollen tube growth. Moreover, the inhibition of de novo transcription influenced changes in nuclear morphology. In this study, the distinctive chromatin structures and transcriptional activity states in generative cell nuclei of bicellular pollen were elucidated, with the generated data contributing to a deeper understanding of transcription and other regulatory mechanisms involved in pollen maturation and pollen tube growth.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"653-666"},"PeriodicalIF":2.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144031097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction to: Bud development, flower phenology and life history of holoparasitic Rafesia cantleyi. 修正：全寄生拉菲（Rafesia cantleyi）的芽发育、花物候和生活史。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2025-07-01 DOI: 10.1007/s10265-025-01633-9

Suk Ling Wee, Shwu Bing Tan, Sue Han Tan, Bernard Kok Bang Lee

引用次数: 0

Androecium homologies in eight-staminate maples: a developmental study. 八雄蕊槭树雄蕊同源性的发育研究。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2025-07-01 Epub Date: 2025-04-25 DOI: 10.1007/s10265-025-01641-9

Alexander E Zavialov, Margarita V Remizowa

{"title":"Androecium homologies in eight-staminate maples: a developmental study.","authors":"Alexander E Zavialov, Margarita V Remizowa","doi":"10.1007/s10265-025-01641-9","DOIUrl":"10.1007/s10265-025-01641-9","url":null,"abstract":"The genus Acer belongs to the family Sapindaceae, whose representatives are characterized by a pentamerous perianth but typically possess only eight stamens. Such an androecium is believed to have evolved through the loss of two stamens. However, there is still no consensus on the origin of eight-staminate androecium including the positions of the two lost stamens and the pathway of their reduction compared to other Sapindaceae. We examined the early stages of flower development in five maple species belonging to different sections - four species with eight stamens and one species with ten stamens - using scanning electron microscopy. Measurements were performed to analyze the relative positions of stamen primordia, their size, and the floral meristem surface area. In addition, the perianth and androecium vasculature was studied to reveal petal-stamen complexes. We found that in three of four 8-staminate species, three stamens are initiated from common petal-stamen primordia, and five arise from single primordia. In A. tegmentosum Maxim., four stamens appear from common primordia with petals, and four from single primordia. Despite developmental differences, stamen distribution within the flower and the angles between adjacent stamens indicate a similar androecium construction in all species. In most species with eight stamens, the differences between two andoecial whorls have vanished. In contrast, A. nikoense (Miq.) Maxim., with ten stamens, possesses two distinct stamen whorls, the antepetalous stamens are initiated from common primordia. In the 8-staminate androecia of the genus Acer, the same two stamens have been lost as in other Sapindaceae. Within genus Acer, there is a certain decrease in the relative size of the floral meristem, accompanied by an increase in the number of common petal-stamen primordia and increased heterogeneity of the androecium (in A. tegmentosum) or reduction of some floral organs.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"603-624"},"PeriodicalIF":2.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143999991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring candidate genes related to pollen abortion in garlic (Allium sativum) based on cytological studies and transcriptome sequencing. 基于细胞学研究和转录组测序，探索大蒜花粉败育相关候选基因。

IF 2.7 3区生物学

Journal of Plant Research Pub Date : 2025-07-01 Epub Date: 2025-04-07 DOI: 10.1007/s10265-025-01631-x

Baoli Fan, Qian Chen, Shiyao Zhou, Yanting Zhang, Yuwen Wang, Yuntao Shang, Na Zhang, Xiaoying Liu, Zhenying Wang

{"title":"Exploring candidate genes related to pollen abortion in garlic (Allium sativum) based on cytological studies and transcriptome sequencing.","authors":"Baoli Fan, Qian Chen, Shiyao Zhou, Yanting Zhang, Yuwen Wang, Yuntao Shang, Na Zhang, Xiaoying Liu, Zhenying Wang","doi":"10.1007/s10265-025-01631-x","DOIUrl":"10.1007/s10265-025-01631-x","url":null,"abstract":"The commercially cultivated garlic varieties are infertile, leading to challenges in conventional hybrid breeding. Xinjiang garlic exhibits visually normal development of both androecium and gynoecium, but most pollen grains are not viable, thus allowing for the identification of flower development-related genes through combined morphological, anatomical, and cytological methods with transcriptome analysis. The inflorescence meristem differentiation of Xinjiang garlic plants was initiated after the 6th-7th leaves emerged, implying the transition from vegetative growth to reproductive growth. With the development of flower organs after bolting, normal pollen mother cell meiosis but no viable pollen grains were detected through triphenyl tetrazolium chloride (TTC) staining. Delayed tapetal degeneration, the gap between the tapetum and the middle layer, and degenerating and aborting anther are visible during anther development. There were 25 differentially expressed MYB genes and 64 flowering pathway related genes at different stages of flower development. The R2R3-MYB genes enriched in Module 22 are involved in the development of the tapetum and pollen. The co-expression network analysis showed that most MYB genes are related to flowering regulatory genes. The expression pattern of MYB35, MYB26, MYB80 and MMD1 may cause delayed degradation of the tapetum, or abnormal development of the pollen wall leading to pollen abortion.","PeriodicalId":16813,"journal":{"name":"Journal of Plant Research","volume":" ","pages":"637-651"},"PeriodicalIF":2.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143795749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0