Review
Plant Sciences
Varvara Dikaya, Nabila El Arbi, Nelson Rojas-Murcia, Sarah Muniz Nardeli, Daniela Goretti, Markus Schmid
Summary: Alternative splicing in plants is closely linked to their ability to perceive environmental stimuli, particularly temperature, which strongly influences plant development and morphology.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Nazish Annum, Moddassir Ahmed, Mark Tester, Zahid Mukhtar, Nasir Ahmad Saeed
Summary: This study investigated the role of Phospholipase C Isoform 5 (PLC5) in thermotolerance in Arabidopsis thaliana. The results showed that over-expression of PLC5 contributes to heat stress tolerance and maintains photosynthetic activity, with effects on root development.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Ximing Che, Bessie L. L. Splitt, Magnus T. T. Eckholm, Nathan D. D. Miller, Edgar P. P. Spalding
Summary: Gravitropism is crucial for plant growth above and below ground. Mutations in LAZY1 disrupt stem gravitropism and result in wider angles of inflorescence branches. The interaction between BRXL4 and LAZY1 at the plasma membrane negatively regulates LAZY1 function, affecting shoot system architecture.
Article
Plant Sciences
Ibtissam Jabre, Saurabh Chaudhary, Cornelia M. Wilson, Dorothee Staiger, Naeem Syed
Summary: Plants utilize gene regulatory mechanisms to adapt to environmental challenges. This study reveals that stochastic changes in DNA methylation can modulate nucleosome occupancy and alternative splicing (AS) in response to cold stress, thus influencing plant metabolism and stress adaptation.
Article
Biochemistry & Molecular Biology
Houjun Zhou, Haiman Ge, Jiahong Chen, Xueqin Li, Lei Yang, Hongxia Zhang, Yuan Wang
Summary: This study reveals the mechanism by which high concentration of SA affects gravitropic root growth and root hair development in plants. The regulation of PIN2 gene transcription and endocytosis of PIN2 protein are involved in this process. Exogenous SA application inhibits gravitropic root growth and root hair development by affecting auxin accumulation and PIN2 distribution.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Ibtissam Jabre, Saurabh Chaudhary, Wenbin Guo, Maria Kalyna, Anireddy S. N. Reddy, Weizhong Chen, Runxuan Zhang, Cornelia Wilson, Naeem H. Syed
Summary: Research suggests that nucleosome positioning affects cold-induced alternative splicing in plants. In Arabidopsis thaliana, different types of alternative splicing events are closely linked to characteristic nucleosome occupancy levels. Internal regions of protein-coding exons, known as exitrons, exhibit distinct nucleosome positioning patterns compared to other alternatively spliced regions.
Article
Plant Sciences
Yi Ma, Keila Garrido, Rashid Ali, Gerald A. Berkowitz
Summary: Plant CNGCs play a crucial role in cytosolic Ca2+ influx for immune defense and thermosensing. Physically interacting CNGCs (CNGC2, CNGC4, and CNGC6) may form a multimeric channel complex involved in immune signaling, while CNGC12 does not interact with other CNGCs. CNGC2, CNGC4, and CNGC6 mutants showed impaired response to the elicitor peptide Pep3, whereas all four CNGC mutants exhibited thermotolerance.
Article
Plant Sciences
Marc Somssich, Filip Vandenbussche, Alexander Ivakov, Norma Funke, Colin Ruprecht, Kris Vissenberg, Dominique Van Der Straeten, Staffan Persson, Dmitry Suslov
Summary: This study investigated the effects of brassinosteroids on Arabidopsis hypocotyl growth responses to gravity, revealing the importance of changes in cellulose and mannan content in regulating plant gravitropic bending and upright posture. It was found that brassinosteroids interfere with plant growth by affecting cellulose fibre organization and cell expansion, as well as by influencing the presence of mannans in the cell walls.
PLANT AND CELL PHYSIOLOGY
(2021)
Article
Plant Sciences
Nikolett Kaszler, Peter Benko, Arpad Molnar, Abigel Zambori, Attila Feher, Katalin Gemes
Summary: Arabidopsis POLYAMINE OXIDASE 5 (AtPAO5) is found to contribute to the formation of shoot meristems (SMs) from lateral root primordia (LRPs) by regulating the thermospermine (T-Spm) level and controlling cytokinin sensitivity. The expression of AtGLB1 and AtGLB2, which enhance cytokinin sensitivity, is downregulated in the pao5-2 mutant and with exogenous T-Spm treatment. This indirectly inhibits the expression of type-A ARABIDOPSIS RESPONSE REGULATORs (ARRs) and leads to upregulation of ARR-coding genes in the pao5-2 mutant.
Article
Plant Sciences
Liudmyla Kozeko
Summary: This study investigates the roles of different inducible and constitutive members of HSP70 and HSP90 families in Arabidopsis thaliana under high temperature and dehydration stress. The results show that specific members play specialized functions in protecting cells under adverse conditions, with significant contributions to thermotolerance and growth activity.
ACTA PHYSIOLOGIAE PLANTARUM
(2021)
Article
Plant Sciences
Estefania Mancini, Antoni Garcia-Molina
Summary: This study investigated the effect of alternative splicing (AS) on the transcriptome of rosette leaves under single and simultaneous copper (Cu) and iron (Fe) deficiency. It was found that differentially spliced genes (DSGs) and differentially expressed genes (DEGs) showed minimal overlap in number, indicating distinct responses to the double deficiency. Furthermore, it was observed that AS might act as a regulatory mechanism to modify the stability and/or functionality of enzymes involved in amino acid production during the combinatorial response to simultaneous Cu and Fe deficiency.
FRONTIERS IN PLANT SCIENCE
(2022)
Review
Plant Sciences
Yu Ling, Magdy M. Mahfouz, Shuangxi Zhou
Summary: The article reviews AS regulation in response to heat stress in different plant species and proposes that AS regulation participates in heat priming establishment and heat memory maintenance in plants. It suggests that pre-mRNA splicing variation is an important regulator of plant heat stress responses.
TRENDS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Sombir Rao, Sarita Jha, Chandni Bansal, Apoorva Gupta, Celine Sorin, Martin Crespi
Summary: Heat stress transcription factors (HSFs) and microRNAs (miRNAs) play a critical role in the regulation of heat stress response in plants by regulating different stress and developmental networks through regulatory feedback mechanisms.
Article
Plant Sciences
Zhanchao Cheng, Changhong Mu, Xiangyu Li, Wenlong Cheng, Miaomiao Cai, Chongyang Wu, Jutang Jiang, Hui Fang, Yucong Bai, Huifang Zheng, Ruiman Geng, Junlei Xu, Yali Xie, Yuping Dou, Juan Li, Shaohua Mu, Jian Gao
Summary: In this study, a modified protocol for protoplast preparation was used to investigate the single-cell transcriptome of the root system in moso bamboo. Four cell types were identified, and new cell-type-specific marker genes for the basal root were defined. The developmental trajectories of the root cap, epidermis, and ground tissues were reconstructed, and key factors regulating cell fate determination were elucidated. Furthermore, the study revealed the divergence of root developmental pathways between moso bamboo and rice and identified key regulatory factors for cell differentiation.
HORTICULTURE RESEARCH
(2023)
Article
Plant Sciences
Shinichi Enoki, Keisuke Tanaka, Ayane Moriyama, Norimichi Hanya, Norika Mikami, Shunji Suzuki
Summary: This study found that the VvCYP90D1 gene in grapevine plays a crucial role in promoting vine growth through the synthesis of the plant hormone BR. The results contribute to the understanding of the molecular mechanisms underlying vine growth and can potentially lead to the development of new techniques for vine management.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)