Article
Plant Sciences
Ning Ding, Ying Zhao, Weixiang Wang, Xuyang Liu, Wentong Shi, Dengfeng Zhang, Jiajie Chen, Shuo Ma, Qingpeng Sun, Tianyu Wang, Min Lu
Summary: The ZmNAP, ZmNAC19, ZmNAC4, ZmJUB1, and ZmNAC87 genes in maize NAC gene family were found to be significantly upregulated under drought stress, and their overexpression in Arabidopsis can significantly improve its drought tolerance. These findings indicate that these genes play important roles in plant responses to drought stress and have potential for use in bioengineering breeding and drought tolerance improvement.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Keith Roesler, Cheng Lu, Jill Thomas, Qingzhang Xu, Peter Vance, Zhenglin Hou, Robert W. Williams, Lu Liu, Michaela A. Owens, Jeffrey E. Habben
Summary: Ectopic expression of AtCXE20 in Arabidopsis and maize resulted in improved maize silk growth, enhanced drought tolerance, decreased anthesis-silking intervals, and provided a new approach for altering SL levels in plants.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Li -Li Liu, Yun-Quan Deng, Xin-Xiu Dong, Cheng-Feng Wang, Fang Yuan, Guo-Liang Han, Bao-Shan Wang
Summary: Ferulic acid plays an important role in the composition and structural properties of the cuticle, and its deficiency in cutin leads to reduced drought tolerance.
Article
Plant Sciences
Fangming Mei, Bin Chen, Fangfang Li, Yifang Zhang, Zhensheng Kang, Xiaojing Wang, Hude Mao
Summary: NAC transcription factors are crucial for plant responses to abiotic stresses. The study isolated three wheat TaSNAC4 homeologous genes and characterized the function of TaSNAC4-3A in plant drought tolerance. Overexpression of TaSNAC4-3A in Arabidopsis enhanced salt, osmotic and drought stress tolerance, reduced stomatal aperture size, and promoted root elongation and seed germination sensitivity to abscisic acid. Transcriptomic analysis showed upregulation of stress responsive genes in TaSNAC4-3A transgenic lines, emphasizing the important role of TaSNAC4-3A in plant drought tolerance.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Plant Sciences
Maria Florencia Jofre, Sabrina B. Mammana, Martin Lopez Appiolaza, Maria Fernanda Silva, Federico Jose Vicente Gomez, Ana Carmen Cohen
Summary: In the current context of climate change and water deficit, the selection of native beneficial microorganisms, such as plant growth-promoting rhizobacteria (PGPR), has become a trend for sustainable agriculture. This study evaluated the production of melatonin (MT) by two native PGPR and their effects on endogenous MT levels in Arabidopsis thaliana plants under drought conditions. The results showed that these native PGPR improved plant tolerance to drought by producing MT, preventing oxidative and membrane damages, and promoting plant growth.
PHYSIOLOGIA PLANTARUM
(2023)
Article
Plant Sciences
Guohui Yu, Zheni Xie, Shanshan Lei, Hui Li, Bin Xu, Bingru Huang
Summary: The transcriptional repressor LpNAL regulates chlorophyll catabolic genes and plays a crucial role in delaying leaf senescence in perennial ryegrass. LpNAL directly represses the expression of chlorophyll catabolic genes and acts as a fine-tuner to control the rate of chlorophyll degradation during leaf senescence. Knocking down LpNAL accelerates leaf senescence, while overexpression of LpNAL leads to delayed leaf senescence or stay-green phenotypes.
Article
Multidisciplinary Sciences
Guangchao Sun, Nishikant Wase, Shengqiang Shu, Jerry Jenkins, Bangjun Zhou, J. Vladimir Torres-Rodriguez, Cindy Chen, Laura Sandor, Chris Plott, Yuko Yoshinga, Christopher Daum, Peng Qi, Kerrie Barry, Anna Lipzen, Luke Berry, Connor Pedersen, Thomas Gottilla, Ashley Foltz, Huihui Yu, Ronan O'Malley, Chi Zhang, Katrien M. Devos, Brandi Sigmon, Bin Yu, Toshihiro Obata, Jeremy Schmutz, James C. Schnable
Summary: Some crop wild relatives have the ability to tolerate extreme stress beyond what domesticated crops can withstand. This study focuses on Paspalum vaginatum, a self-incompatible and stress-tolerant wild relative of maize and sorghum, and explores the molecular mechanisms that enable it to adapt to nutrient-deficit conditions. The findings suggest that inducing trehalose accumulation in maize, similar to the metabolic phenotype of Paspalum vaginatum, can lead to increased biomass accumulation via autophagy.
NATURE COMMUNICATIONS
(2022)
Article
Plant Sciences
Bailin Duan, Xiaofang Xie, Yanhua Jiang, Ning Zhu, Hongli Zheng, Yuxin Liu, Xuejun Hua, Yanyan Zhao, Yuqiang Sun
Summary: GhMYB44 gene plays a crucial role in plant response to abiotic stress, but its function in cotton is not well understood. In this study, GhMYB44 was induced by drought and ABA treatment in cotton. Silencing GhMYB44 resulted in physiological changes, including increased malondialdehyde content and decreased SOD activity. The silenced plants also exhibited increased stomatal aperture, water loss rate, and decreased drought tolerance.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Article
Plant Sciences
Nan Wang, Ming Cheng, Yong Chen, Bojuan Liu, Xiaonan Wang, Guojun Li, Yueheng Zhou, Ping Luo, Zhangying Xi, Hongjun Yong, Degui Zhang, Mingshun Li, Xuecai Zhang, Felix San Vicente, Zhuanfang Hao, Xinhai Li
Summary: ZmNAC080308 is identified as a key gene for drought tolerance, with variations in its 5'-UTR region linked to increased grain yield under drought conditions. A functional marker has been developed to improve maize drought tolerance by selecting for this gene. Overexpression of ZmNAC080308 in Arabidopsis enhances drought tolerance.
Article
Plant Sciences
Yakun Liu, Guifen Wu, Xingxing Ke, Zhifu Zheng, Yueping Zheng
Summary: This study reveals that the ATS1 gene negatively regulates salt resistance in Arabidopsis. Overexpression of ATS1 leads to decreased salt tolerance in terms of seed germination, biomass, chlorophyll content, pod development, and increased root/shoot ratio and anthocyanidin content. Mutations in the ATS1 gene result in higher levels of unsaturated fatty acids, which stabilize the plasma membrane under salt stress. The ats1 mutants also regulate ion homeostasis by upregulating K+ uptake and downregulating Na+ uptake genes.
Article
Biochemistry & Molecular Biology
Chuankun Ren, Zhenghao Li, Penghui Song, Yu Wang, Wanda Liu, Lihua Zhang, Xingguo Li, Wenhui Li, Deguo Han
Summary: In this study, it was found that the transcription factor VhMYB2 played an important role in the resistance of the 'Beta' rootstock to salinity and drought stress. VhMYB2 was predominantly expressed in the mature leaf and root of the grape, and overexpressing VhMYB2 increased the resistance and survival rates of Arabidopsis thaliana under salinity and drought stress. These findings suggest that VhMYB2 may be a key transcription factor regulating the resistance of 'Beta' to abiotic stress.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biochemistry & Molecular Biology
Tran Le Cong Huyen Bao Phan, Nathalie Crepin, Filip Rolland, Patrick Van Dijck
Summary: This study reports the discovery of two isoforms of trehalase in Arabidopsis that have different subcellular localization and are involved in the regulation of drought stress tolerance. These isoforms can interact with each other and their activation is dependent on a stress-induced calcium-dependent protein kinase. Both isoforms can mediate ABA-induced stomatal closure, but the cytoplasmic/nuclear isoform is more effective in drought conditions.
PLANT MOLECULAR BIOLOGY
(2022)
Article
Plant Sciences
Xunji Chen, Guo Chen, Jianping Li, Xiaoyan Hao, Zumuremu Tuerxun, Xiaochun Chang, Shengqi Gao, Quansheng Huang
Summary: The study identified ZmCIPK42 as a positive regulator of salt stress tolerance in maize by interacting with other proteins. Over-expression of ZmCIPK42 enhanced tolerance to high salinity in both maize and Arabidopsis.
PHYSIOLOGIA PLANTARUM
(2021)
Article
Plant Sciences
Liudmyla Kozeko
Summary: This study investigates the roles of different inducible and constitutive members of HSP70 and HSP90 families in Arabidopsis thaliana under high temperature and dehydration stress. The results show that specific members play specialized functions in protecting cells under adverse conditions, with significant contributions to thermotolerance and growth activity.
ACTA PHYSIOLOGIAE PLANTARUM
(2021)
Article
Plant Sciences
Cheng Zhang, Chenchen Tong, Lei Cao, Pengpeng Zheng, Xiaofeng Tang, Lihuan Wang, Min Miao, Yongsheng Liu, Shuqing Cao
Summary: This research uncovered a novel regulatory cascade that significantly influences Cd tolerance in Arabidopsis. The WRKY33-ATL31-IRT1 module plays a crucial role in blocking Cd absorption and preventing metal toxicity. WRKY33 activates the transcription of ATL31, which in turn targets IRT1 for degradation in response to Cd stress.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Plant Sciences
Wanli You, Jinglin Zhang, Xueyin Ru, Feng Xu, Zhengguo Wu, Peng Jin, Yonghua Zheng, Shifeng Cao
Summary: This study investigated the effect of calcium chloride (CaCl2) treatment on GABA accumulation in fresh-cut cantaloupe and the underlying mechanisms. The results showed that CaCl2 treatment increased GABA content and the activities of GAD and SSADH enzymes, while reducing glutamate content and GABA-T activity. Additionally, CaCl2 treatment upregulated the expressions of CmCML11 and CmCAMTA5, as well as several GABA shunt genes, through the transcriptional activation by CmCAMTA5. Furthermore, the interaction between CmCML11 and CmCAMTA5 enhanced the transcriptional activation of GABA shunt genes. Overall, this study reveals that CaCl2 treatment promotes GABA accumulation in fresh-cut cantaloupe through the combined effect of CmCML11 and CmCAMTA5 in regulating the expressions of GABA shunt genes.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
Min Wang, Yupeng Wang, Xiaohui Wang, Guangwei Wei, Huiyi Yang, Xi Yang, Tinghai Shen, Huijie Qu, Sheng Fang, Ziming Wu
Summary: This study identified the high nitrogen use efficiency (NUE) black sesame variety 17-156 and analyzed its underlying physiological and molecular mechanisms. The results showed that 17-156 possesses a sophisticated nitrogen metabolizing machinery to uptake and assimilate higher quantities of inorganic nitrogen, simultaneously improving carbon metabolism and growth. Many important genes were up-regulated in 17-156 under high nitrogen condition. Additionally, 38 potential candidate genes were identified for future studies to improve sesame's NUE. These findings provide valuable resources for understanding the regulatory network of nitrogen metabolism and developing sesame cultivars with improved NUE.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
He Dong, Chongmei Xu, Chengtao Zhang, Li Zhang, Yaqin Yao, Suiqi Zhang
Summary: The study found that short cells in maize leaves not only improve leaf mechanical support and photosynthetic performance, enhance drought resistance, but also participate in stomatal regulation.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
Na Liu, Wenyan Shang, Mengxin Guan, Jibin Xiao, Guangxiang Tian, Baozhan Ma, Wenjing Shang, Xu Li, Shijia Zhao, Chuang Li, Kun Cheng, Wenming Zheng
Summary: This study cloned the full-length cDNA sequence of TaSPX3 gene in wheat and found that TaSPX3 responds to low phosphorus stress in multiple wheat genotypes. Overexpressing TaSPX3 can alleviate phosphorus deficiency symptoms and promote plant growth in Arabidopsis. The study also revealed the interaction of TaSPX3 with other genes related to the phosphorus starvation signaling pathway.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
Kongyuan Wu, Lizhen Wang, Zihan Wu, Ziqing Liu, Zengfei Li, Jun Shen, Shengjie Shi, Hong Liu, Christopher Rensing, Renwei Feng
Summary: Selenium (Se) can reduce uptake and translocation of cadmium (Cd) in plants by regulating root morphology. This study investigated the effects of Se(IV) on root exudates, root morphology, root endogenous hormones, and Cd uptake efficiency in rice under Cd stress. The results showed that Se(IV) significantly reduced Cd concentrations in shoots and roots, and decreased Cd uptake efficiency via root hairs. Se(IV) also affected root morphology, root exudates, and the synthesis of hormones like IAA and JA. However, transcriptome analysis revealed no upregulated differentially expressed genes (DEGs) in IAA synthesis.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)
Article
Plant Sciences
Di Wang, Huaifang Zhang, Xuefei Hu, Haizhen Zhang, Shuang Feng, Aimin Zhou
Summary: This study identified a cell number regulator gene called SlCNR8 in willow, which enhances resistance to trace metals in transgenic poplar seedlings. SlCNR8 reduces Cd uptake and accumulation, and can be used as a candidate gene for genetic improvement of phytostabilisation of trace metals.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2024)