Article
Plant Sciences
Wei Qin, Lihui Xie, Yongpeng Li, Hang Liu, Xueqing Fu, Tiantian Chen, Danial Hassani, Ling Li, Xiaofen Sun, Kexuan Tang
Summary: The AaMYB17 gene has been identified as a positive regulator of GST initiation in Artemisia annua leaves, leading to increased artemisinin content. Overexpression or RNA interference of AaMYB17 does not affect plant growth or trichome morphology.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Xiaolong Huang, Peipei Yi, Yanjing Liu, Qiaohong Li, Yu Jiang, Yin Yi, Huiqing Yan
Summary: This study investigates the origination and molecular mechanism of fruit prickles in Rosa roxburghii. The results reveal that RrTTG1 plays a crucial role in the initiation and cell enlargement of fruit prickles and interacts with RrEGL3 to regulate their development.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Yilong He, Xueqing Fu, Ling Li, Xiaofen Sun, Kexuan Tang, Jingya Zhao
Summary: In this study, AaSPL9 was identified as a positive regulator of glandular trichome initiation in Artemisia annua. Overexpression of AaSPL9 increased the density of glandular trichomes and the content of artemisinin. The study also revealed the molecular mechanism by which AaSPL9 promotes glandular trichome initiation by activating the expression of AaHD1.
Article
Multidisciplinary Sciences
Liqiang Shen, Giorgio Lai, Linlin You, Jing Shi, Xiaoxian Wu, Maria Puiu, Zhanxi Gu, Yu Feng, Yulia Yuzenkova, Yu Zhang
Summary: This study presents the cryo-EM structures of cyanobacterial transcription initiation complexes, revealing the role of SI3-& sigma; arch interaction in transcription initiation of cyanobacteria. Disruption of this structure affects the growth and stress response of cyanobacteria.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Biology
Fu Guo, Hua Wang, Guiwei Lian, Gui Cai, Wu Liu, Haidao Zhang, Dandan Li, Chun Zhou, Ning Han, Muyuan Zhu, Yinghua Su, Pil Joon Seo, Lin Xu, Hongwu Bian
Summary: Molecular and cellular characterization of callus formation in rice reveals that callus derived from the scutellum follows an embryo-like developmental program, while callus derived from the vasculature follows a root organogenesis program. The auxin signaling pathway triggers cell division in the scutellum's epidermis to form an embryo-like structure and initiate callus formation. Specific genes, such as OsLEC1 and OsIAA11, are involved in regulating callus initiation from scutellum and vasculature, respectively.
COMMUNICATIONS BIOLOGY
(2023)
Article
Plant Sciences
Lihui Xie, Tingxiang Yan, Ling Li, Minghui Chen, Yanan Ma, Xiaolong Hao, Xueqing Fu, Qian Shen, Yiwen Huang, Wei Qin, Hang Liu, Tiantian Chen, Danial Hassani, Sadaf-Llyas Kayani, Jocelyn K. C. Rose, Kexuan Tang
Summary: This study identified a molecular mechanism involving homeodomain and WRKY proteins that controls glandular trichome initiation, which is shared by Artemisia annua and mint cultivars. Overexpression of a specific transcription factor in A. annua significantly increased glandular secreting trichome density, demonstrating a potential strategy to enhance the production of valuable secondary metabolites like artemisinin.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Hyung-Woo Jeon, Mary E. Byrne
Summary: Plant leaves have various shapes due to different species, developmental stages, and environments. Mutations in the homeodomain transcription factors Saw1 and Saw2 can lead to earlier appearance of leaf margin serrations.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Ruchika Rajput, Shivi Tyagi, Jogindra Naik, Boas Pucker, Ralf Stracke, Ashutosh Pandey
Summary: This study identified the major components of the proanthocyanidin regulatory network in chickpea and suggested CaPARs as promising targets for genetic engineering to improve agronomic traits. The researchers discovered 119 typical CaMYB encoding genes and two CaR2R3-MYB transcription factors, named CaPAR1 and CaPAR2, which were found to interact with other key regulators in proanthocyanidin biosynthesis. Transgenic expression of CaPARs in a mutant plant also led to complementation of the transparent testa phenotype.
Article
Biochemistry & Molecular Biology
Saddam Hussain, Na Zhang, Wei Wang, Sajjad Ahmed, Yuxin Cheng, Siyu Chen, Xutong Wang, Yating Wang, Xiaojun Hu, Tianya Wang, Shucai Wang
Summary: Two abscisic acid responsive genes, SVB and SVB2, are identified as regulators of trichome formation in Arabidopsis. Their expression is increased in response to ABA treatment and they function redundantly in regulating trichome formation, as shown by the greatly reduced trichome numbers in the double mutants.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Plant Sciences
Ellen Broucke, Thi Tuong Vi Dang, Yi Li, Sander Hulsmans, Jelle Van Leene, Geert De Jaeger, Ildoo Hwang, Van den Ende Wim, Filip Rolland
Summary: Plants have developed a specialized secondary metabolism, such as the production of flavonoid anthocyanins, to protect against stress and promote plant growth. The biosynthesis of anthocyanins is regulated by various factors, including environmental cues and sugar levels. The SnRK1 protein kinase plays a role in repressing anthocyanin biosynthesis by inhibiting the activity of the MBW transcriptional complex. This repression occurs through transcriptional repression, complex dissociation, protein degradation, and phosphorylation of MBW complex proteins.
Article
Cell Biology
Xiaohui Ma, Jinqiang Nian, Hong Yu, Fengxia Zhang, Tianpeng Feng, Liquan Kou, Jian Zhang, Danfeng Wang, Hanwen Li, Lichao Chen, Guojun Dong, Xianzhi Xie, Guodong Wang, Qian Qian, Jiayang Li, Jianru Zuo
Summary: In this study, it was found that the transcription factor ARE4 in rice regulates glucose signaling and nitrogen utilization by activating the expression of high-affinity nitrate transporter genes, thereby coordinating carbon and nitrogen metabolism.
DEVELOPMENTAL CELL
(2023)
Review
Biochemistry & Molecular Biology
Enerand Mackon, Guibeline Charlie Jeazet Dongho Epse Mackon, Yafei Ma, Muhammad Haneef Kashif, Niyaz Ali, Babar Usman, Piqing Liu
Summary: Anthocyanins are natural antioxidants that benefit human health. Understanding the complex biosynthesis and storage processes of anthocyanins in rice, which involve multiple genes, is important for rice breeding and genetic engineering. Research on anthocyanins in rice provides valuable insights for the food industry and scientific community.
Article
Biotechnology & Applied Microbiology
Yujin Yuan, Xin Xu, Yingqing Luo, Zehao Gong, Xiaowei Hu, Mengbo Wu, Yudong Liu, Fang Yan, Xiaolan Zhang, Wenfa Zhang, Yuwei Tang, Bihong Feng, Zhengguo Li, Cai-Zhong Jiang, Wei Deng
Summary: Tomato trichomes serve as mechanical and chemical barriers against herbivores, and auxin treatment can increase the formation of specific types of trichomes on tomato leaves. Genes SlARF4, SlTHM1, and SlMYB52 play crucial roles in regulating trichome formation and providing tolerance to spider mites in tomato plants. The interplay between these genes and cyclin gene SlCycB2 modulates the formation of trichomes in tomato leaves through the R2R3 MYB-dependent auxin signaling pathway.
PLANT BIOTECHNOLOGY JOURNAL
(2021)
Article
Genetics & Heredity
Zheng Zhou, Alex Windhorst, Dirk Schenke, Daguang Cai
Summary: Plants adjust their secondary metabolism to cope with abiotic and biotic stresses. The crosstalk between UV-B-induced signaling pathways and pattern-triggered immunity (PTI) induced by pathogens was studied through comparative transcriptomic analysis. A large set of transcription factors from diverse families, such as MYB, WRKY, or NAC, were found to be co-regulated with UV-B or pathogen-inducible marker genes, providing valuable insights into the complex regulatory mechanisms.
Article
Multidisciplinary Sciences
Kaiqi Liu, Yuehui Tang, Yongyan Tang, Meiru Li, Guojiang Wu, Yaping Chen, Huawu Jiang
Summary: Two WRI1 genes were identified in rice, which were expressed at low levels in leaves and endosperms. Overexpression of one gene increased oil content but affected plant growth and development.