期刊
PLANT CELL
卷 29, 期 6, 页码 1460-1479出版社
OXFORD UNIV PRESS INC
DOI: 10.1105/tpc.17.00136
关键词
-
资金
- PhD studentship from the John Innes Foundation
- Biotechnology and Biological Sciences Research Council
- John Innes Foundation [B/JJ004561/1]
- Biochemical Society of the UK
- JST PRESTO
- National Science Foundation [MCB 1329723, IOS-1557899]
- BBSRC [BBS/E/J/000PR9796, BBS/E/J/000PR9797, BBS/E/J/000PR9795] Funding Source: UKRI
- Biotechnology and Biological Sciences Research Council [BBS/E/J/000PR9797, BBS/E/J/000PR9796, BBS/E/J/000PR9795] Funding Source: researchfish
- Division Of Integrative Organismal Systems
- Direct For Biological Sciences [1557899] Funding Source: National Science Foundation
A transient rise in cytosolic calcium ion concentration is one of the main signals used by plants in perception of their environment. The role of calcium in the detection of abiotic stress is well documented; however, its role during biotic interactions remains unclear. Here, we use a fluorescent calcium biosensor (GCaMP3) in combination with the green peach aphid (Myzus persicae) as a tool to study Arabidopsis thaliana calcium dynamics in vivo and in real time during a live biotic interaction. We demonstrate rapid and highly localized plant calcium elevations around the feeding sites of M. persicae, and by monitoring aphid feeding behavior electrophysiologically, we demonstrate that these elevations correlate with aphid probing of epidermal and mesophyll cells. Furthermore, we dissect the molecular mechanisms involved, showing that interplay between the plant defense coreceptor BRASSINOSTEROID INSENSITIVE-ASSOCIATED KINASE1 (BAK1), the plasma membrane ion channels GLUTAMATE RECEPTOR-LIKE 3.3 and 3.6 (GLR3.3 and GLR3.6), and the vacuolar ion channel TWO-PORE CHANNEL1 (TPC1) mediate these calcium elevations. Consequently, we identify a link between plant perception of biotic threats by BAK1, cellular calcium entry mediated by GLRs, and intracellular calcium release by TPC1 during a biologically relevant interaction.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据