Article
Plant Sciences
Dhawya Mergby, Moez Hanin, Mohammed Najib Saidi
Summary: The novel durum wheat NAC transcription factor gene TtNAC2A was found to play important roles in wheat development and stress responses by enhancing drought tolerance and hypersensitivity to ABA. It also activates a subset of stress-responsive genes, making it an attractive candidate for stress breeding in wheat crops.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Xueying Jin, Yufei Long, Shiqi Xiong, Zhen Yang, Wei Chen, Amangul Hawar, Xiaoyu Chi, Yaxin Chen, Huilian Luo, Jinliang Qi, Guihua Lu, Lingyan Dai, Yonghua Yang, Bo Sun
Summary: This study characterized a sorghum TF, SbNAC2, which is strongly induced by abiotic stresses and plays a crucial role in enhancing plant drought tolerance and inducing antioxidant enzyme activity. Furthermore, SbNAC2 directly activates the expression of stress responsive genes by binding to specific motifs, suggesting its potential as a regulator for improving crop yields under adverse environmental conditions.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Manu Maya Magar, Hui Liu, Guijun Yan
Summary: This study identified and analyzed the AP2/ERF superfamily genes in bread wheat and discovered candidate genes associated with heat stress response. The findings of this study provide important information and a foundation for heat tolerance breeding in wheat.
FRONTIERS IN PLANT SCIENCE
(2022)
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
Environmental Sciences
Clare Brewster, Nathalie Fenner, Felicity Hayes
Summary: The interaction between nitrogen storage and translocation, senescence, and late phase photosynthesis is critical to the post-anthesis grain fill period in wheat. However, the effect of ozone on nitrogen dynamics within the wheat plant is not well understood. This study found that chronic ozone exposure triggered earlier senescence and reduced chlorophyll content in lower leaves. High ozone levels increased residual nitrogen levels and decreased C:N ratios, while extra nitrogen fertilization at anthesis mitigated these effects. Ozone had no effect on nitrogen translocation within the plant.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Review
Biochemistry & Molecular Biology
Xiaopei Wang, Yanli Niu, Yuan Zheng
Summary: Plants face a more volatile environment due to their immobility, prompting the development of efficient mechanisms to adapt to stress. MYB transcription factors, a widespread family in plants, play critical roles in plant development and responses to stresses. Multiple studies have shown that MYB proteins are involved in diverse roles in responses to abiotic stresses, but their regulatory mechanism is still not well understood.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Biochemistry & Molecular Biology
Yexiong Qian, Yan Xi, Lingxue Xia, Ziling Qiu, Li Liu, Hui Ma
Summary: Maize is an important crop for human nutrition and health, but its yield and quality have been seriously affected by adverse environments. This study reveals the regulatory function of ZmNAC074, a plant-specific transcription factor, in enhancing plant resistance to salt, drought, and endoplasmic reticulum stress.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Plant Sciences
Mei Zheng, Jingchen Lin, Xingbei Liu, Wei Chu, Jinpeng Li, Yujiao Gao, Kexin An, Wanjun Song, Mingming Xin, Yingyin Yao, Huiru Peng, Zhongfu Ni, Qixin Sun, Zhaorong Hu
Summary: The study reveals the critical role of the histone acetyltransferase TaHAG1 in salt tolerance of wheat, enhancing tolerance by modulating reactive oxygen species production and signal transduction. TaHAG1 also directly targets a subset of hydrogen peroxide production genes, increasing their acetylation and transcriptional upregulation under salt stress. In wheat accessions with different ploidy levels, the salinity-induced TaHAG1-mediated ROS production pathway contributes to salt tolerance differences.
Article
Plant Sciences
Gurkan Demirkol
Summary: The study found that exogenous PopW treatment significantly improved the growth performance and physiological indicators of alfalfa under drought conditions, promoting the expression of endogenous hormones and related genes, enhancing alfalfa's tolerance to drought stress.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Review
Biochemistry & Molecular Biology
Shahidul Islam, Jingjuan Zhang, Yun Zhao, Maoyun She, Wujun Ma
Summary: Increasing NUE is crucial for crop yield but faces challenges due to the complexity of nitrogen processes and genetic regulation. Recent research focuses on transcription factors and miRNAs regulating NUE-related genes. Integrating knowledge from model species and exploring genetic variations in wheat may lead to effectively improving NUE levels.
Article
Biotechnology & Applied Microbiology
Kuiyin Li, Lili Duan, Yubo Zhang, Miaoxiao Shi, Songshu Chen, Mingfang Yang, Yanqing Ding, Yashu Peng, Yabing Dong, Hao Yang, Zhenhua Li, Liyi Zhang, Yu Fan, Mingjian Ren
Summary: In this study, 40 trihelix genes were identified in sorghum, with gene duplication being the main force driving trihelix gene evolution in sorghum. The findings serve as a basis for further investigation of SbTH gene functions and provide candidate genes for stress-resistant sorghum breeding programs and increasing sorghum yield.
Article
Plant Sciences
Roohollah Shamloo-Dashtpagerdi, Amir Ghaffar Shahriari, Aminallah Tahmasebi, Ramesh R. Vetukuri
Summary: MicroRNA (miRNA)-target gene modules are crucial for plants' response to abiotic stress. In this study, we used a systems biology approach to predict and study the role of a drought-responsive miRNA-target module (miR1119-MYC2) in wheat. We identified differential expression of this module between wheat genotypes with contrasting drought tolerance and under drought versus non-stressed conditions. Furthermore, we found significant associations between the module's expression profiles and various physiological and molecular traits related to drought tolerance in wheat. These findings suggest the importance of miR1119-MYC2 module in wheat's adaptation to drought stress.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Horticulture
Lifang Geng, Lin Su, Yuan Wang, Ziwen Geng, Shang Lin, Yichang Zhang, Shuang Yu, Lufeng Fu, Qinghua Liu, Chenxia Cheng, Xinqiang Jiang
Summary: In this study, a novel dehydration response element binding protein RcTINY2 was identified and characterized in rose, which regulates the response to drought and salt stress and may serve as a candidate gene for improving plant tolerance to abiotic stress.
Review
Agronomy
Nigarin Sultana, Shahidul Islam, Angela Juhasz, Wujun Ma
Summary: Wheat leaf senescence is a complex developmental process influenced by plant hormones and environmental factors, with direct impacts on grain yield and protein content. Early senescence is associated with high protein content, while late senescence is related to high yield. The regulation of senescence involves multiple genes and is influenced by external, internal factors, and genotypic variations.
Article
Agronomy
Marko Ivic, Sonja Grljusic, Brigita Popovic, Luka Andric, Ivana Plavsin, Kresimir Dvojkovic, Dario Novoselovic
Summary: The study highlights the importance of using appropriate stress screening indices in evaluating and selecting nitrogen deficiency-tolerant wheat cultivars for improved yield and quality. Promising stress screening indices such as MP, GMP, HM, STI, and YI were identified for identifying tolerant cultivars to LN conditions. Cultivars like Sofru, BC Opsesija, and MV-Nemere were found to be the most tolerant to LN conditions for grain yield.