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一个类黄条纹转运蛋白基因，对小麦抗 f. sp. 是必需的。

, a Yellow Stripe-Like Transporter Gene, Is Required for Wheat Resistance to f. sp. .

机构信息

State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A and F University, Yangling 712100, China.

出版信息

Genes (Basel). 2020 Dec 3;11(12):1452. doi: 10.3390/genes11121452.

DOI:10.3390/genes11121452
PMID:33287151
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7761651/
Abstract

Yellow stripe-like (YSL) transporters are required for the transportation of metal-phytosiderophores and are structurally related to metal-nicotianamine complexes. Some studies also reported the involvement of YSL transporters in pathogen-induced defense. However, the molecular mechanisms of genes involved in biotic stress responses are still not clear, especially in cereal crops. This study aimed to functionally characterize during the interaction of wheat and f. sp. (), the causal agent of stripe rust disease. TaYS1A was localized in the cell membrane of wheat protoplasts and cells. was significantly up-regulated in wheat leaves after being infected with the avirulent isolate CYR23 and after treatment with salicylic acid (SA). Silencing of by the virus-induced gene silencing method enhanced the susceptibility of wheat to accompanied by reducing the accumulation of SA and HO and down-regulating the transcriptions of and . In addition, TaYS1A was found to interact with TaNH2, a homolog of OsNH2, by yeast-two-hybrid assay, and silencing of diminished the expression of . Our findings suggested the existence of positive regulation of in providing resistance against by modulating SA-induced signaling and offered new insight into the biological role of in wheat against pathogens.

摘要

黄色条纹样（YSL）转运蛋白是金属-植物螯合肽运输所必需的，并且与金属-烟碱胺复合物在结构上相关。一些研究还报道了 YSL 转运蛋白参与了病原体诱导的防御。然而，参与生物胁迫反应的基因的分子机制仍不清楚，特别是在谷类作物中。本研究旨在功能表征 TaYS1A 在小麦与 f. sp. （）互作中的作用， 是条锈病的致病因子。TaYS1A 定位于小麦原生质体和 细胞的细胞膜上。在被无毒的 分离物 CYR23 感染后以及用水杨酸（SA）处理后，TaYS1A 在小麦叶片中显著上调。通过病毒诱导的基因沉默（VIGS）方法沉默 ，伴随着 SA 和 HO 的积累减少以及 和 的转录下调，增强了小麦对 的易感性。此外，通过酵母双杂交试验发现 TaYS1A 与 TaNH2（OsNH2 的同源物）相互作用，沉默 降低了 的表达。我们的研究结果表明，通过调节 SA 诱导的信号转导， 对 提供抗性的正调控的存在，并为 提供了新的见解。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b3d5/7761651/3b4250d5a144/genes-11-01452-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b3d5/7761651/979ee1a4df69/genes-11-01452-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b3d5/7761651/c561303c37a5/genes-11-01452-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b3d5/7761651/7d8cebbef1a9/genes-11-01452-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b3d5/7761651/3c6000419718/genes-11-01452-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b3d5/7761651/e8fff47db528/genes-11-01452-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b3d5/7761651/9dcbc304ca82/genes-11-01452-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b3d5/7761651/5886e694c0af/genes-11-01452-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b3d5/7761651/3b4250d5a144/genes-11-01452-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b3d5/7761651/979ee1a4df69/genes-11-01452-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b3d5/7761651/c561303c37a5/genes-11-01452-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b3d5/7761651/7d8cebbef1a9/genes-11-01452-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b3d5/7761651/3c6000419718/genes-11-01452-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b3d5/7761651/e8fff47db528/genes-11-01452-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b3d5/7761651/9dcbc304ca82/genes-11-01452-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b3d5/7761651/5886e694c0af/genes-11-01452-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b3d5/7761651/3b4250d5a144/genes-11-01452-g008.jpg

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