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拟南芥缺氧诱导长链非编码RNA在低水平水杨酸条件下也与WRKY基因协同作用，参与植物防御和根伸长。

The Arabidopsis Hypoxia Inducible Long Non-Coding RNA also Contributes to Plant Defense and Root Elongation Coordinating with WRKY Genes under Low Levels of Salicylic Acid.

作者信息

Li Shuang, Nayar Saraswati, Jia HuiYuan, Kapoor Sanjay, Wu Juan, Yukawa Yasushi

机构信息

Graduate School of Science, Nagoya City University, Nagoya 467-8501, Japan.

Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, New Delhi 110021, India.

出版信息

Noncoding RNA. 2020 Feb 26;6(1):8. doi: 10.3390/ncrna6010008.

DOI:10.3390/ncrna6010008
PMID:32110879
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7151572/
Abstract

lncRNA was previously identified in the flowering plant as an abundant Pol III-transcribed long non-coding RNA (lncRNA) of approximately 260 nt. lncRNA accumulation is responsive to hypoxic stress and salicylic acid (SA) treatment in roots, but its function has not yet been identified. In this study, microarray analysis of an mutant and wild-type Arabidopsis indicated a strong association of lncRNA with the defense response. accumulation exhibited an inverse correlation with an accumulation of two genes (/) when plants were exposed to exogenous low SA concentrations (20 µM), infected with , or in the early stage of development. The highest accumulation was observed 5 days after germination, at which time no or mRNA was detectable. The presence of low levels of SA resulted in a significant reduction of root length in seedlings, whereas and mutants exhibited the opposite phenotype. Taken together, lncRNA participates in Pathogenesis-Related Proteins 1 (PR-1)-independent defense and root elongation, which are related to the SA response. The mutual regulation of lncRNA and is mediated by Nonexpressor of Pathogenesis-Related Gene 1 (NPR1).

摘要

长链非编码RNA（lncRNA）先前在开花植物中被鉴定为一种丰富的由RNA聚合酶III转录的约260个核苷酸的长链非编码RNA。lncRNA的积累对根部的缺氧胁迫和水杨酸（SA）处理有反应，但其功能尚未确定。在这项研究中，对突变体和野生型拟南芥的微阵列分析表明lncRNA与防御反应密切相关。当植物暴露于外源低SA浓度（20μM）、感染病原体或在发育早期时，lncRNA的积累与两个基因（/）的积累呈负相关。在萌发后5天观察到lncRNA的积累最高，此时未检测到或基因的mRNA。低水平SA的存在导致幼苗根长显著缩短，而突变体和突变体则表现出相反的表型。综上所述，lncRNA参与了与SA反应相关的非病程相关蛋白1（PR-1）非依赖性防御和根伸长。lncRNA和的相互调节由病程相关基因1的非表达子（NPR1）介导。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/e9929142f683/ncrna-06-00008-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/5696428a96e0/ncrna-06-00008-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/7e6d1d025fc1/ncrna-06-00008-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/c997d9016743/ncrna-06-00008-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/57f37ef047cd/ncrna-06-00008-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/e914766da820/ncrna-06-00008-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/3d12a5478b9b/ncrna-06-00008-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/310966f601b7/ncrna-06-00008-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/090802d3d1ec/ncrna-06-00008-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/e9929142f683/ncrna-06-00008-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/5696428a96e0/ncrna-06-00008-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/7e6d1d025fc1/ncrna-06-00008-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/c997d9016743/ncrna-06-00008-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/57f37ef047cd/ncrna-06-00008-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/e914766da820/ncrna-06-00008-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/3d12a5478b9b/ncrna-06-00008-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/310966f601b7/ncrna-06-00008-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/090802d3d1ec/ncrna-06-00008-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0d6e/7151572/e9929142f683/ncrna-06-00008-g009.jpg

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