Article
Agronomy
Na Li, Zeyu Yang, Juan Li, Wenya Xie, Xiaofeng Qin, Yuanrong Kang, Qinglu Zhang, Xianghua Li, Jinghua Xiao, Haigang Ma, Shiping Wang
Summary: In this study, OsVQ14 and OsVQ32 were identified as substrates of the OsMPKK6-OsMPK4 cascade to enhance rice resistance to Xoo, providing a more complete signal transduction pathway for induced defenses in rice.
Article
Plant Sciences
German Dario Ahumada, Eva Maria Gomez-alvarez, Matteo Dell'Acqua, Iris Bertani, Vittorio Venturi, Pierdomenico Perata, Chiara Pucciariello
Summary: Flooding caused by heavy rainfall and poor soil drainage can negatively affect plant germination and seedling establishment. Rice, however, has unique strategies, such as fast elongation of coleoptiles, to cope with flooding. Microorganisms can contribute to rice health by promoting growth and protecting against stress. A metagenomic analysis of the microbiome during rice germination under submergence revealed distinct compositions of microbiota in different rice varieties, with Arborio seeds showing the development of long coleoptiles. The isolated bacteria were found to have starch hydrolyzing and indole-related compound production abilities under hypoxia. Inoculating these bacteria into submerged rice seeds showed a genotype-dependent response. These findings highlight the importance of endophytic bacteria in promoting rice seedling establishment during flooding.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biotechnology & Applied Microbiology
Seung Woon Bang, Seowon Choi, Xuanjun Jin, Se Eun Jung, Joon Weon Choi, Jun Sung Seo, Ju-Kon Kim
Summary: Research has shown that the rice gene OsCCR10 is directly activated by the transcription factor OsNAC5, mediating drought tolerance through lignin accumulation. Overexpression of OsCCR10 in transgenic rice plants results in improved drought tolerance and higher lignin content, while knockout mutants exhibit reduced lignin accumulation and drought tolerance. Transgenic rice plants with root-preferential overexpression of OsCCR10 also show higher grain yield under field drought conditions, indicating the importance of lignin biosynthesis in drought tolerance.
PLANT BIOTECHNOLOGY JOURNAL
(2022)
Article
Plant Sciences
Xiangyang Gu, Shuxin Gao, Jing Li, Pengyu Song, Qian Zhang, Jinfeng Guo, Xiaoyan Wang, Xiaoyu Han, Xiaoji Wang, Ying Zhu, Zhengge Zhu
Summary: This study identified a novel drought tolerance induced gene OsWIH2 in rice, overexpression of which significantly improves rice drought tolerance. It was found that the drought-inducible transcription factor OsbHLH130 can activate the expression of OsWIH2, leading to decreased water loss rate and ROS accumulation under drought stress.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Plant Sciences
Peilun Wang, Juan Li, Zhenzhen Zhang, Qinglu Zhang, Xianghua Li, Jinghua Xiao, Haigang Ma, Shiping Wang
Summary: The knockout of OsVQ1 in rice enhances disease resistance and delays flowering by releasing OsMPK6 for activation, promoting H2O2 accumulation, and repressing the expression of flowering-promoting genes. This suggests that the OsVQ1-OsMPK6 module plays a crucial role in rice immunity and flowering.
PLANT CELL REPORTS
(2021)
Article
Biotechnology & Applied Microbiology
Deepesh Kumar, M. K. Ramkumar, Bipratip Dutta, Ajay Kumar, Rakesh Pandey, Pradeep Kumar Jain, Kishor Gaikwad, Dwijesh C. Mishra, K. K. Chaturvedi, Anil Rai, Amolkumar U. Solanke, Amitha Mithra Sevanthi
Summary: The study found that the dynamics and regulation of miRNAs under drought stress are related to the three major quantitative trait loci for 'yield under drought stress' (qDTYs) in drought-tolerant and drought-sensitive rice varieties. Several miRNAs and their target genes were identified as promising candidates for drought tolerance at the booting stage.
Article
Agronomy
Jenna E. Fonta, Jitender Giri, Phanchita Vejchasarn, Jonathan P. Lynch, Kathleen M. Brown
Summary: The anatomical and architectural phenotypes of rice roots were examined to understand their responses to drought stress. The study found that the plasticity of root phenotypes in Azucena contributes to its drought tolerance by reducing the metabolic cost of soil exploration and improving water transport efficiency.
Article
Biochemistry & Molecular Biology
Cong Gao, Shuai Lu, Rong Zhou, Zihui Wang, Yi Li, Hui Fang, Baohua Wang, Moxian Chen, Yunying Cao
Summary: This study found that the calcium signaling pathway in plants is regulated by the interaction between OsCBL8 and OsCIPK17, which controls rice seed germination, seedling growth, and resistance to high temperatures and pathogens.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Miaomiao Lv, Dejia Hou, Jiale Wan, Taozhi Ye, Lin Zhang, Jiangbo Fan, Chunliu Li, Yilun Dong, Wenqian Chen, Songhao Rong, Yihao Sun, Jinghong Xu, Liangjun Cai, Xiaoling Gao, Jianqing Zhu, Zhengjian Huang, Zhengjun Xu, Lihua Li
Summary: Drought stress is a major cause of crop losses. The WRKY family plays a crucial role in plant processes, including drought stress response. The study identifies a new member of the family, OsWRKY97, which positively regulates drought tolerance in rice by improving osmotic adjustment ability, oxidative stress tolerance, and water retention capacity.
Article
Microbiology
Jingjing Chang, Shaohua Shi, Lei Tian, Marcio F. A. Leite, Chunling Chang, Li Ji, Lina Ma, Chunjie Tian, Eiko E. Kuramae
Summary: The study found that the bacterial and fungal alpha-diversities of the hybrid F1 and self-crossing generations (F2, F3, F4) were closer to one of the two parental lines, indicating a role of the parental line in the diversity of the rhizosphere microbial community assembly. Self-crossing from F1 to F4 led to weak co-variation of the bacterial and fungal communities and distinct rhizosphere microbiomes.
Article
Biochemistry & Molecular Biology
Haigang Ma, Juan Li, Ling Ma, Peilun Wang, Yuan Xue, Ping Yin, Jinghua Xiao, Shiping Wang
Summary: In rice defense response, the Raf-like MAPKKK OsEDR1 inhibits the activity of the MAPK cascade by interacting with OsMPKK10.2, leading to enhanced resistance of rice plants to the bacterial pathogen Xanthomonas oryzae pv. oryzicola. This study provides new insights into the regulatory role of Raf-like kinases in plant immunity.
Article
Plant Sciences
Mingxing Zhang, Ranran Zhao, Kai Huang, Zhiqi Wei, Boya Guo, Shuangzhan Huang, Zhao Li, Wenzhu Jiang, Tao Wu, Xinglin Du
Summary: The study reveals that OsWRKY76 gene in rice positively regulates drought tolerance and interacts with OsbHLH148, OsJAZ12, and other proteins to mediate jasmonate signaling in rice. This finding provides a new insight into the mechanisms of drought tolerance in rice.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Shuai Lu, Yaoyu Chen, Surong Wang, Binying Han, Chenglei Zhao, Penghui Xue, Yue Zhang, Hui Fang, Baohua Wang, Yunying Cao
Summary: Oryza Sativa, as an important food crop in China, is susceptible to drought. The CBL-interacting protein kinase (CIPK) OsCIPK17 plays a crucial role in plant growth, development, and environmental stress. This study investigated the specific mechanism of OsCIPK17 in response to drought tolerance in rice using transcriptional and metabonomic analysis. The findings revealed that OsCIPK17 enhances drought resistance in rice by regulating deep roots, energy metabolism pathway, and the accumulation of citric acid in the tricarboxylic acid (TCA) cycle. Exogenous experiments demonstrated that OsCIPK17 responds to citric acid, involving the auxin metabolism pathway, and improves drought resistance. This research provides new insights into rice drought resistance.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Samira A. F. El-Okkiah, Mohamed M. M. El-Afry, Safaa A. A. Shehab Eldeen, Amira M. M. El-Tahan, Omar M. M. Ibrahim, Mostafa M. M. Negm, Mohamad Alnafissa, Mohamed T. T. El-Saadony, Hessa M. R. S. Almazrouei, Synan F. F. AbuQamar, Khaled A. A. El-Tarabily, Dalia A. A. Selim
Summary: The study evaluated the effectiveness of foliar spray of silica in alleviating water stress in rice. It was found that foliar application of silica improved the drought tolerance of rice by enhancing plant growth and physiological parameters. The integration of silica in breeding programs is recommended to develop drought-tolerant rice cultivars.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Ruiqing Li, Ruifang Yang, Wenyin Zheng, Liquan Wu, Can Zhang, Huali Zhang
Summary: Melatonin can alleviate drought stress in rice by enhancing antioxidant system and adjusting osmotic balance. OsSGT1 is involved in the drought response of rice, and OsABI5 plays a crucial role in this process.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)