Article
Plant Sciences
Wenli Lian, Qiwei Yu, Ping Zhang, Yuchao Cui, Zhuoran Yin, Hong Cui, Liang Chen, Hongfang Jia
Summary: This study identified an auxin efflux transporter NtPIN3 that is involved in the low phosphate response of tobacco. Overexpression of NtPIN3 enhances tolerance to low Pi stress in tobacco by increasing root length and auxin concentration, as well as enhancing phosphate uptake and antioxidant capacity.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2023)
Review
Plant Sciences
Cassio Flavio Fonseca de Lima, Juergen Kleine-Vehn, Ive De Smet, Elena Feraru
Summary: Plants adapt to environmental challenges by using various strategies, including thermomorphogenesis to promote organ growth and cool down in response to high temperatures. While the thermomorphogenesis response in shoot organs is well understood, recent research has focused on the hormonal and molecular responses important for root thermomorphogenesis. This has highlighted the significance of root responses to high and extreme temperatures, including modifications of root architecture and interactions with the soil environment.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Larisa Fedoreyeva, Inna A. Chaban, Neonila Kononenko
Summary: The addition of glycine amino acid and dipeptides to tobacco roots was found to significantly enhance the development of root hairs. Peptides accumulated in specific tissues of the root and regulated gene expression involved in root hair growth. However, the molecular mechanisms underlying this effect remain unclear and may involve interactions with DNA and histones, potentially through epigenetic regulation.
Article
Plant Sciences
Xueqing Wang, Bingwu Wang, Zhongbang Song, Lu Zhao, Wenyuan Ruan, Yulong Gao, Xianqing Jia, Keke Yi
Summary: This study investigated the changes in gene expression profiles and gene regulatory networks after topping tobacco plants. The results showed that core elements of K+ uptake and xylem loading were dramatically suppressed in roots after topping. It was also found that changes in auxin content could affect K+ uptake by influencing the activity of K+ uptake-related genes through the tobacco auxin response factor (NtARF) genes, resulting in changes in K+ content. These findings are important for enhancing K+ uptake and improving leaf quality in tobacco breeding.
Article
Plant Sciences
Yue Huang, Xinyu Li, Ziwei Duan, Jinjing Li, Yuchen Jiang, Siming Cheng, Tao Xue, Fenglan Zhao, Wei Sheng, Yongbo Duan
Summary: The study found that ClO2 can be a potential growth regulator for tobacco, with positive effects on tobacco growth, leaf senescence, and root development, especially in increasing chlorophyll content and promoting root growth.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2022)
Article
Plant Sciences
Larisa Fedoreyeva, Ekaterina N. Baranova, Inn A. Chaban, Tatyana A. Dilovarova, Boris F. Vanyushin, Neonila Kononenko
Summary: This study investigates the effects of AEDL peptide on tobacco root development, revealing that AEDL promotes root cell elongation and protects root tissue from oxidative stress caused by NaCl toxicity. The study also finds that the localization and accumulation of AEDL in roots are tissue-specific and that AEDL induces structural changes in chromatin, affecting gene expression associated with root system development.
Article
Plant Sciences
Yunpeng Fu, Chi Wang, Wenli Lian, Xuejie Zhu, Qiwei Yu, Yuhong Jia, Hongfang Jia, Liangwen Xie
Summary: This study identified NtIAA26 as a gene that is significantly upregulated in response to salt stress in tobacco. Overexpression of NtIAA26 improved salt tolerance in tobacco plants by enhancing K+ uptake, reducing Na+ accumulation, and increasing antioxidant activity. This was accompanied by higher expression levels of K+ transporter genes and antioxidant-related genes in the transgenic plants.
PLANT GROWTH REGULATION
(2022)
Article
Agricultural Engineering
Jing Wang, Hongyan Wang, Yunpeng Fu, Tingting Huang, Yuanbo Liu, Xuewen Wang
Summary: This study investigated how drought affects the biosynthesis of aromatic terpenoids in plants, revealing common and variety-specific gene expression regulation in response to drought stress. The findings provide important insights into the regulatory mechanisms of diterpenoid biosynthesis under drought conditions, which could potentially guide crop breeding and farming practices.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Plant Sciences
Yudong Chen, Haiying Xiang, Ling Jia, Qianxu Yang, Jianduo Zhang, Jiarui Jiang, Wanli Zeng, Lele Deng, Jingjing Jin, Qian Gao, Xuemei Li
Summary: A total of 4382 sgRNAs targeting 1060 tobacco genes were obtained, resulting in the creation of 10,682 targeted mutants using high-throughput methods. Four optimization experiments were conducted to address issues encountered during the genetic transformation process.
PLANT CELL REPORTS
(2023)
Article
Agronomy
Zhonghui Liu, Di Wang, Heng Tang, Haozhen Li, Xiaohua Zhang, Shaolin Dong, Li Zhang, Long Yang
Summary: In this study, seven CAT genes were identified in tobacco and classified into three groups. Gene structure analysis revealed differences in the number of introns among the genes. Tissue-specific analysis showed variations in expression patterns among different CAT genes under different stresses. This study provides insights into understanding the behavior of CAT genes during environmental stress in tobacco.
Article
Engineering, Environmental
Martin Lycka, Milos Bartak, Ondrej Helia, Stanislav Kopriva, Dana Moravcova, Josef Hajek, Lukas Fojt, Richard Cmelik, Jiri Fajkus, Miloslava Fojtova
Summary: Hydroponic experiments were conducted to investigate the effects of prolonged sulfate limitation and Cd exposure on Arabidopsis thaliana and Nicotiana tabacum. Both species showed adverse effects on morphology, photosynthetic and biochemical parameters, and nutritional status under low sulfate treatments and Cd stress. The responses to low sulfate supply, Cd exposure, or a combination of both factors were species-specific, and Cd exposure had opposing effects on the levels of certain elements in the roots.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Plant Sciences
Zhengrong Hu, Zexue He, Yangyang Li, Qing Wang, Pengfei Yi, Jiashuo Yang, Chenkai Yang, Gennadii Borovskii, Xuejiao Cheng, Risheng Hu, Wenli Zhang
Summary: Drought stress leads to significant economic losses for tobacco industries. This study revealed the changes in gene expression and metabolite profiles in tobacco plants before and after drought treatment. The findings provide mechanistic insights into how tobacco plants respond to drought stress through transcriptomic and metabolic changes, and offer potential gene candidates for engineering new tobacco varieties with enhanced drought tolerance.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Yang Liu, Lu-Lu Yu, Ye Peng, Xin-Xin Geng, Fei Xu
Summary: AOX inhibition by SHAM significantly impaired tobacco root development, including shortened main root length and inhibition of root hair formation. Transcriptome analysis revealed downregulation of genes related to auxin biosynthesis, cell wall loosening, cell cycle, and RGF1 in SHAM-treated roots, leading to excessive accumulation of reactive oxygen species and oxidative damage. Addition of indoleacetic acid and dimethylthiourea alleviated the defects to a limited extent.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Genetics & Heredity
Yongxia Yang, Panpan Yao, Hao Song, Qingchang Li
Summary: In this study, the NCED3 gene in tobacco plants was characterized, and it was found that NtNCED3 participates in plant responses to phosphate deficiency and drought stress. It may serve as a potentially valuable gene for genetic modification of plant tolerance to both drought stress and phosphate starvation.
Article
Plant Sciences
Hao Wang, Ning Li, Hang Li, Songjie Zhang, Xiaoquan Zhang, Xiaoxiao Yan, Zhaojun Wang, Yongxia Yang, Songtao Zhang
Summary: In this study, researchers found that overexpression of the NtGCN2 gene improves the drought tolerance of tobacco plants. Transcriptome analysis revealed that NtGCN2 may regulate plant drought resistance by modulating proline accumulation, reactive oxygen species scavenging, and stomatal closure. These findings suggest the potential application of the NtGCN2 gene in genetic modification for crop drought tolerance.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)