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生物和非生物胁迫激活了不同的钙通透通道。

Biotic and Abiotic Stresses Activate Different Ca Permeable Channels in .

作者信息

Cao Xiao-Qiang, Jiang Zhong-Hao, Yi Yan-Yan, Yang Yi, Ke Li-Ping, Pei Zhen-Ming, Zhu Shan

机构信息

College of Life and Environmental Sciences, Hangzhou Normal University Hangzhou, China.

College of Life and Environmental Sciences, Hangzhou Normal UniversityHangzhou, China; Department of Biology, Duke University, DurhamNC, USA.

出版信息

Front Plant Sci. 2017 Jan 31;8:83. doi: 10.3389/fpls.2017.00083. eCollection 2017.

DOI:10.3389/fpls.2017.00083
PMID:28197161
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5281638/
Abstract

To survive, plants must respond rapidly and effectively to various stress factors, including biotic and abiotic stresses. Salinity stress triggers the increase of cytosolic free Ca concentration ([Ca]) via Ca influx across the plasma membrane, as well as bacterial flg22 and plant endogenous peptide Pep1. However, the interaction between abiotic stress-induced [Ca] increases and biotic stress-induced [Ca] increases is still not clear. Employing an aequorin-based Ca imaging assay, in this work, we investigated the [Ca] changes in response to flg22, Pep1, and NaCl treatments in . We observed an additive effect on the [Ca] increase which induced by flg22, Pep1, and NaCl. Our results indicate that biotic and abiotic stresses may activate different Ca permeable channels. Further, calcium signal induced by biotic and abiotic stresses was independent in terms of spatial and temporal patterning.

摘要

为了生存，植物必须对包括生物和非生物胁迫在内的各种胁迫因素做出快速而有效的反应。盐胁迫通过质膜上的钙内流以及细菌鞭毛蛋白flg22和植物内源肽Pep1触发细胞质游离钙浓度（[Ca]）的增加。然而，非生物胁迫诱导的[Ca]增加与生物胁迫诱导的[Ca]增加之间的相互作用仍不清楚。在这项工作中，我们采用基于水母发光蛋白的钙成像测定法，研究了[Ca]对flg22、Pep1和NaCl处理的响应变化。我们观察到flg22、Pep1和NaCl诱导的[Ca]增加具有累加效应。我们的结果表明，生物和非生物胁迫可能激活不同的钙通透通道。此外，生物和非生物胁迫诱导的钙信号在空间和时间模式上是独立的。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b777/5281638/7dc8c5407b65/fpls-08-00083-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b777/5281638/56c42a188d04/fpls-08-00083-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b777/5281638/b5a0abac19f3/fpls-08-00083-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b777/5281638/9b534de306e2/fpls-08-00083-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b777/5281638/d63e0d7d1952/fpls-08-00083-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b777/5281638/65664712c6ef/fpls-08-00083-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b777/5281638/288c91fb81bc/fpls-08-00083-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b777/5281638/7dc8c5407b65/fpls-08-00083-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b777/5281638/56c42a188d04/fpls-08-00083-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b777/5281638/b5a0abac19f3/fpls-08-00083-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b777/5281638/9b534de306e2/fpls-08-00083-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b777/5281638/d63e0d7d1952/fpls-08-00083-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b777/5281638/65664712c6ef/fpls-08-00083-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b777/5281638/288c91fb81bc/fpls-08-00083-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b777/5281638/7dc8c5407b65/fpls-08-00083-g007.jpg

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