Article
Plant Sciences
Hui-Min Zhao, Dian-Feng Zheng, Nai-Jie Feng, Guang-Sheng Zhou, Aaqil Khan, Xu-Tong Lu, Peng Deng, Hang Zhou, You-Wei Du
Summary: The application of exogenous hemin can enhance the morph-physiological traits of rapeseed and improve photosynthetic efficiency and antioxidant characteristics, thus alleviating the inhibition of salt stress on rapeseed.
Article
Biochemistry & Molecular Biology
Miao Song, Naiyue Hu, Sumei Zhou, Songxin Xie, Jian Yang, Wenqi Ma, Zhengkai Teng, Wenxian Liang, Chunyan Wang, Mingna Bu, Shuo Zhang, Xiwen Yang, Dexian He
Summary: This study elucidated the physiological and molecular mechanisms of how strigolactones (SLs) alleviate drought stress in wheat. It was found that SLs enhance chlorophyll levels to promote photosynthesis and modulate the antioxidant system to scavenge reactive oxygen species (ROS), thus alleviating drought stress.
Article
Plant Sciences
Beini Chen, Xiaobo Bian, Mengxin Tu, Tao Yu, Lixi Jiang, Yunhai Lu, Xiaoyang Chen
Summary: Oilseed rape, an important oil crop, is subjected to various abiotic stresses, including salinity stress. This study focused on the effects of low salinity stress on seedling growth performance and the molecular mechanisms of salt tolerance in oilseed rape. It was found that moderate salt concentrations can stimulate seedling growth by increasing both above- and underground biomasses. RNA-seq analysis showed that low salinity stress enhances photosynthesis efficiency and redirects energy towards biomass formation. The identified candidate genes can be targeted for molecular breeding and genetic engineering to enhance salt tolerance in oilseed rape.
Article
Agronomy
Yue Liu, Xiaoyu Ding, Yan Lv, Yong Cheng, Chunsheng Li, Lei Yan, Shanshan Tian, Xiling Zou
Summary: Exogenous serotonin was found to alleviate salt-induced growth inhibition in rapeseed seedlings by promoting biomass accumulation, increasing antioxidant enzyme activity, and enhancing solute content. It also reduced oxidative damage and increased chlorophyll content under salinity stress, ultimately mitigating the toxic effects of salt stress on rapeseed seedlings.
Article
Plant Sciences
Sani Ibrahim, Nazir Ahmad, Lieqiong Kuang, Keqi Li, Ze Tian, Salisu Bello Sadau, Sani Muhammad Tajo, Xinfa Wang, Hanzhong Wang, Xiaoling Dun
Summary: Root transcriptome analysis was conducted on 20 Brassica napus accessions with high and low potassium utilization efficiency (KUE) using RNA-seq. Differences in expression profiles of 71,437 genes were found between the two contrasting genotype groups. Functional classification analysis revealed that these differentially expressed genes were involved in hormone and signaling pathways, as well as glucose, lipid, and amino acid metabolism. Moreover, 33 transcription factors related to root development were identified. By combining differential expression analysis, gene co-expression network analysis, and genome-wide association study results, four candidate hub genes regulating root system formation were identified.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Pengfei Hao, Han Liu, Baogang Lin, Yun Ren, Lan Huang, Lixi Jiang, Shuijin Hua
Summary: In this study, the metabolites and genes involved in red pigment formation in rapeseed petals were identified. Flavonoids, especially anthocyanins, were found to play an important role in red pigment formation, and BnaA03.ANS was identified as an irreplaceable gene in red-flowered rapeseed.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Genetics & Heredity
Yu Xu, Shunxian Tao, Yunlin Zhu, Qi Zhang, Ping Li, Han Wang, Yan Zhang, Aldiyar Bakirov, Hanming Cao, Mengfan Qin, Kai Wang, Yiji Shi, Xiang Liu, Lin Zheng, Aixia Xu, Zhen Huang
Summary: This study found that rapeseed line 2205 exhibited more tolerance to alkaline salt compared to line 1423, with lesser plasma membrane damage index, accumulated osmotic solute, and higher antioxidant enzyme activities contributing to its tolerance. Ultrastructure observation and transcriptome analysis revealed a more integrated mesophyll-cell structure and more genes responding to alkaline salt in line 2205. The high expression of specific-response genes enriched in carbohydrate metabolism, photosynthetic processes, ROS regulating, and response to salt stress pathways contributes to the alkaline salt tolerance. Twelve potential cross-differentially expressed genes were suggested for further analysis of the resistance mechanism of rapeseed.
Article
Plant Sciences
Yuting Yang, Wenxiang Wang, Qiong Hu, Harsh Raman, Jia Liu
Summary: This study investigated the genetic variation and putative candidate genes of pod orientation in B. napus. Genome-wide association analysis identified two QTLs for angles of pedicel on raceme (APR) and two QTLs for angles of the pod on pedicel (APP). RNA-seq analysis revealed differentially expressed genes (DEGs) involved in pod orientation.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Muhammad Azhar Hussain, Dan Luo, Liu Zeng, Xiaoyu Ding, Yong Cheng, Xiling Zou, Yan Lv, Guangyuan Lu
Summary: This study explores the gene expression profiles of Brassica napus in response to low temperature stress using transcriptome data. The study identifies the enriched biological functions and metabolic pathways in response to low temperature stress and summarizes the expression patterns of transcription factors in this response. It also reveals a complex regulatory network in these pathways.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biology
Abdelaleim ElSayed, Azza H. Mohamed, Mohammed Suhail Rafudeen, Ahmad A. Omar, Mohamed F. Awad, Elsayed Mansour
Summary: The application of exogenous spermidine (Spd) in rapeseed seedlings under salt stress conditions was found to improve their salt tolerance. Spd treatment increased chlorophyll and proline content, maintained higher photosystem II activity, and alleviated the negative effects of NaCl stress on CO2 assimilation. Additionally, Spd enhanced the activities of antioxidant enzymes, modulated polyamine pathway, and upregulated the expression of Calvin cycle enzyme-related genes.
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
(2022)
Article
Plant Sciences
Guoqiang Zheng, Xiaoyun Dong, Jiaping Wei, Zigang Liu, Ali Aslam, JunMei Cui, Hui Li, Ying Wang, Haiyan Tian, Xiaodong Cao
Summary: In this study, the DNA methylation pattern and its regulated pathway of winter rapeseed under freezing stress were explored using methylome and transcriptome analysis. The results showed that the average methylation level decreased under freezing stress, with CG methylation level being the highest. Functional enrichment analysis identified several differentially expressed genes associated with differentially methylated genes, including core transcription factors involved in plant response to stress.
Article
Plant Sciences
Long Wang, Jingdong Zheng, Guisheng Zhou, Jing Li, Chen Qian, Guobin Lin, Yiyang Li, Qingsong Zuo
Summary: Salt stress limits plant growth, but nitrogen application is an effective strategy to alleviate its negative effects.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Jie Xiong, Kaining Hu, Nesma Shalby, Chenjian Zhuo, Jing Wen, Bin Yi, Jinxiong Shen, Chaozhi Ma, Tingdong Fu, Jinxing Tu
Summary: This study analyzed the leaf transcriptomes of strong and weak hybrid plants and their parents, and found differentially expressed genes related to plant hormone signaling and photosynthesis pathways, as well as genes related to cell size. The results suggest that these pathways play a role in regulating the dynamic changes and heterosis in hybrid plants.
Article
Biochemistry & Molecular Biology
Nazir Ahmad, Bin Su, Sani Ibrahim, Lieqiong Kuang, Ze Tian, Xinfa Wang, Hanzhong Wang, Xiaoling Dun
Summary: An evaluation of natural variations in root- and biomass-related traits in a rapeseed association panel under low nitrogen treatment revealed 14 quantitative trait loci associated with high nitrogen-use efficiency. Additionally, a differential gene expression analysis identified 16 genes involved in rapeseed root development under nitrogen stress. These findings have important implications for genetic improvement of nitrogen-use efficiency in rapeseed.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Hao Chen, Yongfeng Wang, Jiong Liu, Tian Zhao, Cuiling Yang, Qunying Ding, Yanfeng Zhang, Jianxin Mu, DaoJie Wang
Summary: In this study, a total of 278 BnWRKY transcription factors were identified and analyzed, and the ectopic expression of BnWRKY149 and BnWRKY217 suggested their involvement in the ABA signaling pathway. The results revealed the important roles of BnWRKY transcription factors in the abiotic stress response of Brassica napus L. plants. The findings contribute to understanding the molecular mechanisms underlying plant responses to abiotic stresses.