Article
Plant Sciences
Bin Ma, Jianbo Zhu, Xianzhong Huang
Summary: The study revealed the evolutionary diversification of the SMXL gene family through the green plant lineage. Some SMXL genes in cotton play critical roles in the SL signaling pathway, affecting plant growth and development. The characterization of the cotton SMXL gene family offers new insights into their roles in responding to SL signals and in plant growth and development.
Article
Plant Sciences
Maotong Sun, Dongyue Wang, Cuishuang Liu, Yuan Liu, Muge Niu, Jinnan Wang, Jihong Li
Summary: The study identified and characterized the SMXL gene family in poplar, revealing their important roles in light response, axillary bud growth, and branch development. The expansion of the gene family during evolution suggests their significance in poplar growth and development.
Article
Horticulture
Jinghao Xu, Lijian Li, Yufei Liu, Yanyan Yu, Han Li, Xiao Wang, Yunning Pang, Hui Cao, Qinghua Sun
Summary: Exogenous GR24 can alleviate the damage caused by drought stress in apple seedlings by improving leaf chlorophyll contents, photosynthetic parameters, and antioxidant capacity while reducing reactive oxygen species and malondialdehyde production. RNA-seq analysis revealed that exogenous GR24 activates genes associated with stress response, antioxidant enzyme metabolism, calcium signaling, and plant hormone signaling. Therefore, SLs can alleviate drought stress in apples, contributing to improved yield and quality under drought conditions.
SCIENTIA HORTICULTURAE
(2023)
Article
Engineering, Environmental
Mohammad Golam Mostofa, Md Mezanur Rahman, Kien Huu Nguyen, Weiqiang Li, Yasuko Watanabe, Cuong Duy Tran, Minghui Zhang, Misao Itouga, Masayuki Fujita, Lam-Son Phan Tran
Summary: The study revealed that strigolactones are involved in mitigating arsenic stress in rice roots by regulating arsenate uptake, glutathione biosynthesis, vacuolar sequestration of arsenic, and antioxidant defense responses.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Young-Joon Park, Jae Young Kim, Chung-Mo Park
Summary: The protein SMAX1 enhances the sensitivity of hypocotyl morphogenesis in Arabidopsis to temperature. It interacts with phyB to promote thermomorphogenic responses in hypocotyls. Furthermore, the abundance of SMAX1 is thermodynamically controlled, preventing excessive growth of hypocotyls at warm temperatures.
Article
Plant Sciences
Xingqiang Fan, Yuqi Li, Cecilia H. H. Deng, Shiyao Wang, Zijun Wang, Yi Wang, Changpeng Qiu, Xuefeng Xu, Zhenhai Han, Wei Li
Summary: Propagation through stem cuttings is a popular method for clonal propagation of certain tree species. This study investigates the regulatory mechanisms of adventitious root formation in apple trees. The research identifies the gene MdBRC1 as a key player in inhibiting adventitious root formation. The study also proposes potential target genes and the use of CRISPR technology to enhance adventitious root formation in woody plants.
Article
Plant Sciences
Nikhil Job, Maneesh Lingwan, Shyam Kumar Masakapalli, Sourav Datta
Summary: UV-B radiation has dual effects on plants, acting as a developmental cue or a stress factor depending on dosage. The B-BOX transcription factor BBX11 plays a crucial role in the molecular response to UV-B, regulating hypocotyl growth and protecting plants from high UV-B radiation by promoting the accumulation of photo-protective compounds and inducing DNA repair genes. BBX11 and the transcription factor HY5 mutually regulate each other, contributing to UV-B-mediated photomorphogenesis and stress tolerance.
Article
Plant Sciences
Riti Thapar Kapoor, Parvej Alam, Yinglong Chen, Parvaiz Ahmad
Summary: Strigolactones are important non-traditional plant hormones that play crucial regulatory roles in plant growth and development, as well as in adaptation to environmental stress. Strigolactones typically promote oxidative responses in plant cells and the production of osmolytes to maintain cellular homeostasis under environmental pressure. Studying the biosynthesis and functions of strigolactones is of great significance for the development of environmentally friendly and sustainable agricultural technologies.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Plant Sciences
Xingqiang Fan, Hui Li, Yushuang Guo, Haochen Sun, Shiyao Wang, Qi Qi, Xiangning Jiang, Yi Wang, Xuefeng Xu, Changpeng Qiu, Wei Li, Zhenhai Han
Summary: This study found that strigolactones have inhibitory effects on adventitious root formation in apple. Transcriptome analysis identified 12,051 differentially expressed genes related to adventitious root initiation. Further analysis indicated that strigolactones might inhibit root formation by repressing two core hub genes, MdLAC3 and MdORE1. Three negatively correlated miRNA-mRNA pairs were identified and validated. Overexpression of mdm-miR164b and silencing MdORE1 enhanced adventitious root formation in tobacco and apple, respectively. The role of mdm-miR164b-MdORE1 in strigolactone-mediated repression of rooting ability was confirmed. This comprehensive study provides insights into strigolactone-mediated adventitious root formation in woody plants and suggests a potential strategy for genetic improvement of rooting capacity.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Plant Sciences
Yu-Ying Yang, Peng-Fei Zheng, Yi-Ran Ren, Yu-Xin Yao, Chun-Xiang You, Xiao-Fei Wang, Yu-Jin Hao
Summary: This study identified a new bHLHm1 transcription factor MdSAT1 which functions in mediating tolerance to salt and drought resistance. Overexpression of MdSAT1 in apple calli and Arabidopsis resulted in increased tolerance to salt and drought stress. These findings pave the way for further functional investigation on MdSAT1's role in abiotic stress tolerance.
Article
Plant Sciences
Xinyu Lian, Xinyu Zhao, Qiang Zhao, Guiluan Wang, Yuanyuan Li, Yujin Hao
Summary: This study systematically investigated the function of MdDREB2A in apple and found that it plays an important role in abiotic stress response, providing a candidate gene for genetic improvement of crop resistance.
HORTICULTURAL PLANT JOURNAL
(2021)
Review
Plant Sciences
Ameena Fatima Alvi, Zebus Sehar, Mehar Fatma, Asim Masood, Nafees A. Khan
Summary: Improving plant resilience to changing environmental conditions is a global scientific focus. Strigolactones (SLs) play a significant role in regulating plant growth and development, as well as mitigating plant damage under stress.
Review
Plant Sciences
Sabry Soliman, Yi Wang, Zhenhai Han, Tariq Pervaiz, Ashraf El-kereamy
Summary: Strigolactones (SLs), as novel phytohormones, play a crucial role in enhancing plant tolerance to abiotic stresses by responding to nutrient deficiency, drought, high temperature, and light stress. They assist in initiating physiological responses and mediating the interaction with soil microorganisms, attracting beneficial microorganisms and providing essential elements to roots. In addition to their role in stress resistance, SLs also affect photosynthesis, bridge other phytohormones, and induce metabolic compounds.
Article
Biochemistry & Molecular Biology
Samy Carbonnel, Salar Torabi, Caroline Gutjahr
Summary: Strigolactones (SLs) and smoke-derived Karrikins (KARs) are structurally similar butenolide compounds that control distinct aspects of plant development through their specific receptors. Recent research shows that synthetic molecules can induce transcriptional responses independently of the canonical receptor complex.
PLANT SIGNALING & BEHAVIOR
(2021)
Article
Genetics & Heredity
Runming Zhang, Yanlong Dong, Yuanyuan Li, Guangyue Ren, Chao Chen, Xiaoxia Jin
Summary: Recent studies have found that strigolactones (SLs) play a role in stress adaptation regulation, particularly through the MAX2 gene. This study aimed to clone and characterize the CsMAX2 gene from cucumber in Arabidopsis. The results showed that the expression of CsMAX2 changed significantly under salt, drought, and ABA stresses in cucumber, and overexpressing CsMAX2 increased stress tolerance and enhanced growth in Arabidopsis. The study also showed the interaction between SL and ABA during stress adaptation.