Article
Plant Sciences
Martina Legris, Bogna Maria Szarzynska-Erden, Martine Trevisan, Laure Allenbach Petrolati, Christian Fankhauser
Summary: The study found that in Arabidopsis, phototropins regulate leaf flattening by perceiving light direction and controlling the auxin signaling pattern, which affects cell expansion. The components of phototropin signaling in leaves differ partially from those in hypocotyls, and the response to light on the upper and lower sides of the leaf blade suggests a partially distinct requirement for phototropin signaling components on each side.
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
Yuliya Krasylenko, George Komis, Sofiia Hlynska, Tereza Vavrdova, Miroslav Ovecka, Tomas Pospisil, Jozef Samaj
Summary: Strigolactones regulate developmental events in roots by affecting the organization and dynamics of cortical microtubules. Chemical and genetic manipulation of strigolactone signaling impacts microtubule remodeling, especially under light conditions. The application of strigolactones in dark conditions partially alleviates cytoskeletal rearrangement, suggesting a new mechanistic connection between cytoskeletal behavior and light-dependent strigolactone signaling.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Yupei Wang, Ruifeng Yao, Xiaoxi Du, Lvjun Guo, Li Chen, Daoxin Xie, Steven M. Smith
Summary: The study reveals that seeds of the root parasitic plant Striga hermonthica can sense very low concentrations of strigolactones exuded from host roots, with the sensitivity attributed to the ShHTL7 protein. The crystal structure of ShHTL7 and its interactions with various SLs and key proteins have been determined, shedding light on the molecular mechanism underlying its sensitivity. The findings also highlight the potential role of the SL-induced MAX2-ShHTL7-SMAX1 complex formation in determining the sensitivity to strigolactones.
Article
Plant Sciences
Hui Yang, Zhongyi Yang, Zhuozhuo Mao, Yali Li, Dezhou Hu, Xiao Li, Guixia Shi, Fang Huang, Baohui Liu, Fanjiang Kong, Deyue Yu
Summary: The study conducted a genome-wide comparative analysis of DNA methylation in germinated cotyledons of soybean, revealing more methylated sites in the cco mutant but at a slightly lower level overall compared to the wild type. Various differentially methylated genes were identified in cotyledons, with hypomethylated genes related to sequence-specific DNA binding transcription factor activity. Functional characterization demonstrated that GmHDZ20 is involved in regulating plant growth.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Lior Tal, Malathy Palayam, Mily Ron, Aleczander Young, Anne Britt, Nitzan Shabek
Summary: This study reveals the mechanism of perception and signal activation of the plant hormone strigolactones, as well as the key factors regulating strigolactone signaling. Through the study of mutants, the importance of protein conformational switch in the signaling process is demonstrated. Additionally, an organic acid metabolite that can directly trigger the conformational switch is discovered.
Article
Reproductive Biology
Y. Pandey, A. R. Pooja, H. Lakshmi Devi, N. Singh Jalmeria, Meeti Punetha, S. Kumar, A. Paul, K. Kumar, Arvind Sonawane, H. A. Samad, G. Singh, S. Bag, M. Sarkar, V. S. Chouhan
Summary: The study demonstrates that the expression of IGFs in placentome is a site-specific phenomenon in water buffaloes, indicating autocrine/paracrine and endocrine functions. Additionally, the in vitro findings support the critical role of IGF1 in placental development by promoting angiogenesis, steroid synthesis, and cell proliferation during early pregnancy.
Article
Plant Sciences
Athul Vijayan, Soeren Strauss, Rachele Tofanelli, Tejasvinee Atul Mody, Karen Lee, Miltos Tsiantis, Richard S. Smith, Kay Schneitz
Summary: 3DCoordX, an open-source computational tool, provides spatial context for cells in plant organs with complex shapes. This tool allows rapid spatial annotation of cells and analysis of cellular growth patterns. The research findings reveal the spatial context of cellular features in organs of different species.
Review
Plant Sciences
Hongbin Wei, Yifeng Jing, Lei Zhang, Dexin Kong
Summary: Phytohormones play essential roles in regulating stomatal development and patterning in plants, with different organ responses to phytohormones observed in Arabidopsis. Current research focuses on understanding how distinct hormonal signaling circuits integrate into core stomatal development pathways and how different phytohormones interact to modify stomatal density and spacing patterns. Insights from Arabidopsis research may offer pathways for studying the effects of phytohormones on regulating stomatal development in cereal grasses to enhance crop adaptation responses.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Biochemical Research Methods
Sylwia Struk, Carolien De Cuyper, Anse Jacobs, Lukas Braem, Alan Walton, Annick De Keyser, Stephen Depuydt, Lam Dai Vu, Ive De Smet, Francois-Didier Boyer, Dominique Eeckhout, Geert Persiau, Kris Gevaert, Geert De Jaeger, Sofie Goormachtig
Summary: MAX2 plays a central role in the signaling cascade of SLs, KARs, and KL, interacting with D14 and KAI2 to control specific developmental processes; the discovery of a novel interactor of MAX2, PAPP5, suggests its involvement in modulating KARs/KL-related phenotypes through dephosphorylation of MAX2.
MOLECULAR & CELLULAR PROTEOMICS
(2021)
Article
Biochemistry & Molecular Biology
Xiao-Jin Hou, Li-Xia Ye, Xiao-Yan Ai, Chun-Gen Hu, Zhong-Ping Cheng, Jin-Zhi Zhang
Summary: This study investigated the role of the PI-like gene CcMADS20 in petal and stamen development in citrus, and discovered four promoter types that can serve as effective genetic markers in citrus breeding practices.
Article
Plant Sciences
Maria Jimena Ruiz-Diaz, Daniel Matsusaka, Jimena Cascales, Diego H. Sanchez, Maximiliano Sanchez-Lamas, Pablo D. Cerdan, Javier F. Botto
Summary: This study explores the genetic basis of shade avoidance response (SAR) in Arabidopsis thaliana and identifies the role of polymorphisms in the PHYB gene in seed germination, seedling development, and shade avoidance response.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Kotomi Kikukawa, Hisako Takigawa-Imamura, Kouichi Soga, Toshihisa Kotake, Takumi Higaki
Summary: This study explores the importance of cell shape for cotyledon morphogenesis in Arabidopsis. The results show that changes in cell shape lead to abnormal cotyledon shapes, and suggest that reduced cell wall cellulose content and altered cortical microtubule organization may contribute to cell deformation. Mathematical modeling and computer simulations further support these experimental observations, demonstrating that elongation of pavement cells results in irregular cotyledon shapes.
PLANT AND CELL PHYSIOLOGY
(2023)
Article
Plant Sciences
Lin Wang, Fangfang Zhou, Xuan Liu, Haixia Zhang, Tianci Yan, Yanzhao Sun, Kun Shi, Xiaodong Zheng, Yunpeng Zhu, Dongqian Shan, Yixue Bai, Yan Guo, Jin Kong
Summary: The synthesis of melatonin in plants is regulated by darkness and light. AtSNAT6 and AtHY5 play important roles in the regulation of melatonin synthesis, with AtHY5 directly suppressing the expression of AtSNAT6. These findings reveal the regulatory mechanisms of melatonin synthesis.
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Review
Plant Sciences
Monalisha Rath, Krishna Reddy Challa, Kavitha Sarvepalli, Utpal Nath
Summary: Post-mitotic cell growth is crucial for plant growth and development, and the CIN-TCP transcription factors play an important role in regulating cell growth. However, their role in regulating cell proliferation and expansion is still poorly understood.
FRONTIERS IN PLANT SCIENCE
(2022)