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| 1 | Abscisic Acid-mediated Epigenetic Processes in Plant Development and Stress Responses显示文摘Abscisic acid (ABA) regulates diverse plant processes, growth and development under non-stress conditions and plays a pivotal role in abiotic stress tolerance. Although ABA-regulated genetic processes are well known, recent discoveries reveal that epigenetic processes are an integral part of ABA-regulated processes. Epigenetic mechanisms, namely, histone modifications and cytosine DNA methylation-induced modification of genome give rise to epigenomes, which add diversity and complexity to the genome of organisms. Histone monoubiquitination appears to regulate ABA levels in developing seeds through histone H2B monoubiquitination. ABA and H2B ubiquitination dependent chromatin remodeling regulate seed dormancy. Transcription factor networks necessary for seed maturation are repressed by histone deacetylases (HDACs)-dependent and PICKLE chromatin remodeling complexes (CRCs), whereas ABA induces the expression of these genes directly or through repression of HDACs. Abiotic stress-induced ABA regulates stomatal response and stress-responsive gene expression through HDACs and HOS15-dependent histone deacetylation, as well as through the ATP-dependent SWITCH/SUCROSE NONFERMENTING CRC. ABA also probably regulates the abiotic stress response through DNA methylation and short interfering RNA pathways. Further studies on ABA-regulated epigenome will be of immense use to understand the plant development, stress adaptation and stress memory. | Viswanathan Chinnusamy Zhizhong Gong Jian-Kang Zhu | 2008 | Journal of Integrative Plant Biology2008，50，10： | 43 |
| 2 | RNA-directed DNA methylation and demethylation in plants显示文摘RNA-directed DNA methylation (RdDM) is a nuclear process in which small interfering RNAs (siRNAs) direct the cytosine methylation of DNA sequences that are complementary to the siRNAs. In plants, double stranded-RNAs (dsRNAs) generated by RNA-dependent RNA polymerase 2 (RDR2) serve as precursors for Dicer-like 3 dependent biogenesis of 24-nt siRNAs. Plant specific RNA polymerase IV (Pol IV) is presumed to generate the initial RNA transcripts that are substrates for RDR2. siRNAs are loaded onto an argonaute4-containing RISC (RNA-induced silencing complex) that targets the de novo DNA methyltransferase DRM2 to RdDM target loci. Nascent RNA transcripts from the target loci are generated by another plant-specific RNA polymerase, Pol V, and these transcripts help recruit com- plementary siRNAs and the associated RdDM effector complex to the target loci in a transcrip- tion-coupled DNA methylation process. Small RNA binding proteins such as ROS3 may direct tar- get-specific DNA demethylation by the ROS1 family of DNA demethylases. Chromatin remodeling en- zymes and histone modifying enzymes also participate in DNA methylation and possibly demethylation. One of the well studied functions of RdDM is transposon silencing and genome stability. In addition, RdDM is important for paramutation, imprinting, gene regulation, and plant development. Lo- cus-specific DNA methylation and demethylation, and transposon activation under abiotic stresses suggest that RdDM is also important in stress responses of plants. Further studies will help illuminate the functions of RdDM in the dynamic control of epigenomes during development and environmental stress responses. | CHINNUSAMY Viswanathan | 2009 | Science China(Life Sciences)2009，52，4： | 22 |
| 3 | Cold stress regulation of gene expression in plants显示文摘 | Viswanathan Chinnusamy Jianhua Zhu Jian-Kang Zhu | 2007 | Trends in Plant Science2007，，10： | 4 |
| 4 | Salt stress signaling and mechanisms of plant salt tolerance 显示文摘 | Viswanathan Chinnusamy Zhu Jiankang | 2006 | Genetic Engineering2006，27，： | 1 |
| 5 | Cold strss regulation of gene expression in plants显示文摘 | Chinnusamy Viswanathan Zhu J H Zhu J K | | 0，，10： | 1 |
| 6 | Salt stress Signaling and mechanisms of plant salt tolerance显示文摘 | Viswanathan Chinnusamy Zhu Jianhua Zhu Jiankang | 2006 | Genetic Engi- neering2006，27，： | 1 |
| 7 | Abiotic stress and ABA-inducible Group 4 LEA from Brassica napus plays a key role in salt and drought tolerance显示文摘 | Monika Dalal Deepti Tayal Viswanathan Chinnusamy Kailash C. Bansal | 2008 | Journal of Biotechnology2008，，2： | 1 |
| 8 | ICE1:a regulator of cold-induced transcription and freezing tolerance in Arabidopsis显示文摘 | Viswanathan Chinnusamy Masaru Ohta Siddhartha Kanrar | 2003 | Genes&Development2003，，17： | 1 |
| 9 | The role of microRNAs and other endogenous small RNAs in plant stress responses显示文摘 | Lata I. Shukla Viswanathan Chinnusamy Ramanjulu Sunkar | 2008 | BBA - Gene Regulatory Mechanisms2008，，11： | 1 |
| 10 | ICEl:a regulator of cold-induced transcription and freezing tolerance in Arabidopsis显示文摘 | Viswanathan Chinnusamy Masaru Ohta Siddhartha Kanrar | 2003 | Genes&Development2003，，17： | 1 |
| 11 | Epigenetic regulation of stress responses in plants显示文摘 | Viswanathan Chinnusamy Jian-Kang Zhu | 2008 | Current Opinion in Plant Biology2008，，2： | 1 |
| 12 | Cold stress regulationof gene expression in plants显示文摘 | Chinnusamy Viswanathan Zhu J H | 2007 | Trends in Plant Science2007，12，10： | 1 |
| 13 | Understanding and Improving Salt Tolerance in Plants显示文摘 | Viswanathan Chinnusamy Andre Jagendorf Jian - Kang Zhu | 2005 | Crop Science2005，45，： | 1 |
| 14 | Mechanisms of Small RNA Generation from Cis-NATs in Response to Environmental and Developmental Cues显示文摘真核细胞的染色体的一个大比例从 DNA 的积极、否定的海滨被抄录并且可以因此产生重叠感觉和 antisense 抄本。一些这些所谓的自然 antisense 抄本(NAT ) 可能被共同调整。当重叠感觉和 antisense 抄本响应各种各样的发展、环境的暗示在一样的房间同时被表示时;他们可以形成双 stranded RNA,它能被小 RNA 生物的续生说机械认出并且处理了成小介入 RNA (siRNAs ) 。cis-NAT-derived siRNAs (nat-siRNAs ) 在植物,动物,和真菌是在场的。在植物, nat-siRNAs 的存在不仅被北污点和基因分析,而且由有在 cis-NATs 的重叠区域和在植物的产生 siRNA cis-NATs 的 19%29% 的 siRNAs 的全面六倍的丰富的事实支持仅仅在他们的重叠区域产生 siRNAs。Silencing 由 nat-siRNAs 调停了是为调整 cis-NATs 的表示的机制之一。这评论集中于与 nat-siRNAs 的生物的续生说机制以及规定和察觉有关的挑战性的问题。包括直接 RNA 定序并且海滨特定的 RNA 定序,为检测 cis-NATs 的新技术的优点和限制也被讨论。 | Xiaoming Zhang Yifan Lii Zhigang Wu Anton Polishko Huiming Zhang Viswanathan Chinnusamy Stefano Lonardi Jian-Kang Zhu Renyi Liu Hailing Jin | 2013 | Molecular Plant2013，6，3： | 0 |
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