Decrypting chloroplast signalling in C4 photosynthesis under heat stress

该项目旨在填补在植物中如何协调光合作用、叶绿体信号、新陈代谢和细胞特化以适应逆境的关键知识空白。它的目的是剖析在热胁迫期间，a)叶绿体产生的细胞危难信号与b)活性自由基和c)植物代谢之间的复杂相互作用。它希望提供对耐热C4光合作用至关重要的叶绿体信号的第一次洞察，C4光合作用活跃在玉米和高粱等谷类作物的两种特殊叶细胞类型中。预期的结果包括前所未有的叶绿体信号的细胞级分辨率图，这将有利于改善作物光合作用的工程设计。

This project aims to fill a critical knowledge gap in how photosynthesis, chloroplast signals, metabolism and cell specialisation are coordinated for stress acclimation in plants. It aims to dissect the complex interactions between a) cellular distress signals produced by chloroplasts with b) reactive radicals and c) plant metabolism during heat stress. It expects to provide the first insights into chloroplast signalling critical for heat-tolerant C4 photosynthesis which is active in two specialised leaf cell types in cereals such as maize and sorghum. Expected outcomes include an unprecedented cell-level resolution map of chloroplast signalling, which will benefit the engineering of improved photosynthesis into crops.