Article
Microbiology
Jiali Yang, Wenhui Gu, Zezhong Feng, Bin Yu, Jianfeng Niu, Guangce Wang
Summary: This study investigates the synthesis of ABA and its regulation on stress-responsive genes in Neopyropia yezoensis. The results show that ABA can alleviate oxidative stress in N. yezoensis and its synthesis pathway is similar to the carotenoid pathway in higher plants. Furthermore, the emergence of the ABA signaling pathway in N. yezoensis can be traced back to an ancestral pathway.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Plant Sciences
Morgan Lee, Anna Dominguez-Ferreras, Ewon Kaliyadasa, Wei-Jie Huang, Edna Antony, Tracey Stevenson, Silke Lehmann, Patrick Schafer, Marc R. Knight, Vardis Ntoukakis, Heather Knight
Summary: This study revealed the roles of plant Mediator subunits MED16, MED14, and MED2 in regulating transcription in response to the phytohormone ABA and demonstrated their requirement for full transcriptional activation of promoters containing both ABRE and DRE elements. Furthermore, these subunits were shown to be essential for controlling water loss from leaves but not for ABA-dependent growth inhibition, indicating specificity in their functions. The experimental approach used in this study can be utilized to identify the functions of plant transcriptional regulator subunits.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Ruth Ndathe, Renee Dale, Naohiro Kato
Summary: The ABA signaling pathway is crucial for plants to defend against drought stress. Recent research suggests that ABA alters the expression kinetics of over 6,500 genes through ABF-ABRE associations. This study constructed a model that highlights the importance of a single ABRE in the ABA gene regulatory network.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Liru Cao, Xiaomin Lu, Guorui Wang, Qianjin Zhang, Xin Zhang, Zaifeng Fan, Yanyong Cao, Li Wei, Tongchao Wang, Zhenhua Wang
Summary: The study revealed the significant role of ZmbZIP33 in response to drought stress and rewatering, regulating the ABA signaling pathway and enhancing drought resistance and recovery ability.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Shupei Rao, Yuru Tian, Chong Zhang, Yingzhi Qin, Meiqin Liu, Shihui Niu, Yue Li, Jinhuan Chen
Summary: This study reveals the crosstalk mechanism between methyl jasmonate and abscisic acid signaling in regulating water use efficiency and drought stress tolerance in Populus euphratica. By conducting molecular experiments and phenotype analysis, it was found that PeJAZ2 acts as a positive regulator in MeJA and ABA signaling, enhancing drought tolerance and water use efficiency in poplar through ABA-induced stomatal closure and hydrogen peroxide production.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Forestry
Min-Ha Kim, Jin-Seong Cho, Eun-Kyung Bae, Young-Im Choi, Seok Hyun Eom, You Jin Lim, Hyoshin Lee, Eung-Jun Park, Jae-Heung Ko
Summary: PtrMYB120 functions as a positive regulator of both anthocyanin and lignin biosynthetic pathways, with overexpression leading to increased anthocyanin accumulation and dominant suppression resulting in decreased levels of both anthocyanin and lignin. Furthermore, transgenic poplars with PtrMYB120-SRDX had irregularly shaped xylem vessels and reduced S-lignin content, showing the direct regulation of genes involved in anthocyanin and lignin biosynthesis. Additionally, enhanced saccharification efficiency was observed in transgenic poplars with slightly reduced lignin content, indicating that PtrMYB120 can be targeted to improve saccharification efficiency in woody perennials.
Article
Biochemistry & Molecular Biology
Zhen Zeng, Tong Lyu, Yingmin Lyu
Summary: The gene LoSWEET14 from Oriental hybrid lily 'Sorbonne' plays an important role in sugar transport and distribution. The study demonstrates that LoSWEET14 is highly induced under various stress conditions and overexpression of LoSWEET14 in tobacco enhances stress tolerance while increasing sensitivity to ABA. Additionally, the promoter region of LoSWEET14 contains stress-related cis-acting elements.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Horticulture
Ying Ye, Xin Jia, Mengyang Xue, Yongchen Gao, Hong Yue, Fengwang Ma, Xiaoqing Gong
Summary: In this study, we found that overexpression of the MpSnRK2.10 gene alleviated the growth restriction caused by salt stress in apple plants. The overexpression lines showed reduced electrolyte leakage, malondialdehyde content, and reactive oxygen species production, while having increased chlorophyll content, superoxide dismutase activity, photosynthetic capacity, and accumulation of several amino acids under salt stress. The overexpression lines also accumulated less Na+ and up-regulated genes involved in Na+ balance compared to wild-type plants. Overexpression of MpSnRK2.10 altered the role of the ABA pathway in response to salt stress.
SCIENTIA HORTICULTURAE
(2022)
Article
Biochemistry & Molecular Biology
Jing Cao, Qijiang Jin, Jiaying Kuang, Yanjie Wang, Yingchun Xu
Summary: The study proposed a novel ABA-mediated pathway for flower timing control in lotus, revealing extensive programmed cell death in aborting flower buds. NnSnRK1 plays a key role in lotus flowering, with ABA content decline releasing its repression on NnSnRK1. These findings highlight the importance of hormonal changes and PCD in lotus flower bud development.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Biochemistry & Molecular Biology
Kai Li, Chongshan Zhong, Qinghua Shi, Huangai Bi, Biao Gong
Summary: A study found that cold plasma (CP) seed treatment can enhance cold stress tolerance in tomato plants by inducing H2O2 and ABA cascade signals, which regulate gene expression and accumulation of active substances to improve plant adaptation to low temperature stress.
FREE RADICAL BIOLOGY AND MEDICINE
(2021)
Article
Plant Sciences
Yangyang Li, Yang Liu, Zhenhua Gao, Feng Wang, Tao Xu, Mingfang Qi, Yufeng Liu, Tianlai Li
Summary: This study reveals that small RNAs, specifically miR162, play a crucial role in regulating gene expression in response to low temperature stress in tomato plants. miR162 is involved in the abscisic acid (ABA) signaling pathway and regulates the expression of DICER-LIKE1 (DCL1) and its targets. This research provides a new direction for studying plant abiotic stress resistance.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Yong-Jie Shan, Dan Li, Jing-Jing Cao, Li Zhang, Li-Quan Han, Mei-Ping Zhang, Zhen-Guo Shen
Summary: The study demonstrates the important role of Arabidopsis ORANGE (AtOR) in regulating ABA-dependent adaptive response to drought stress. Overexpression of AtOR significantly enhances drought tolerance in Arabidopsis by regulating the expression of ABA- and stress-responsive genes. The subcellular localization of AtOR protein in chloroplasts suggests its involvement in drought stress response pathways.
PLANT GROWTH REGULATION
(2022)
Article
Biochemistry & Molecular Biology
Myung Ki Min, Rigyeong Kim, Woo-Jong Hong, Ki-Hong Jung, Jong-Yeol Lee, Beom-Gi Kim
Summary: In this study, it was demonstrated that overexpression of the rice ABA receptor OsPYL/RCAR3 alleviates growth retardation in plants exposed to osmotic stress, while overexpression of the OsPYL/RCAR3-interacting protein OsPP2C09 increases sensitivity to osmotic stress. Additionally, OsPP2CAs were shown to activate gene expression via the cis-acting drought-responsive element, suggesting a role in ABA-independent signaling pathways.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Agronomy
Wenqiang Chen, Wei Wang, Yusong Lyu, Yawen Wu, Pingliang Huang, Shikai Hu, Xiangjin Wei, Guiai Jiao, Zhonghua Sheng, Shaoqing Tang, Gaoneng Shao, Ju Luo
Summary: Pre-harvest sprouting (PHS) is a detrimental trait in cereal production, and the regulatory mechanism involves the OsVP1 and Sdr4 genes. OsVP1 mutant showed increased PHS compared to the wild type, and activated the expression of Sdr4 by binding to its promoter. Both OsVP1 and Sdr4 mutants were insensitive to exogenous ABA and utilized the ABA signaling pathway in regulating seed dormancy, shedding light on strategies to prevent PHS in rice.
Article
Plant Sciences
Weijun Chen, Huina Zhou, Fan Xu, Meng Yu, Alberto Coego, Lesia Rodriguez, Yuqing Lu, Qijun Xie, Qiong Fu, Jia Chen, Guoyun Xu, Dousheng Wu, Xiushan Li, Xiaojuan Li, Yvon Jaillais, Pedro L. L. Rodriguez, Sirui Zhu, Feng Yu
Summary: In Arabidopsis, the receptor-like kinase FERONIA (FER) senses peptide ligands in the plasma membrane and is involved in plant growth, stress signaling, and adaptive responses. Our study reveals that FER interacts with C2 domain ABA-related (CAR) proteins to control the nano-organization of the plasma membrane. This interaction leads to the upregulation of CAR protein translation and stabilizes the plasma membrane's liquid-ordered phase.