Collaborative Research: Protective Interaction of a Small Heat-Shock Protein with Photosystem II

9728273热胁迫降低作物生产力并限制植物存活和分布，这在很大程度上是通过减少光合作用。 我们最近发现叶绿体小分子热休克蛋白（HSP）在热胁迫过程中保护光合作用，并在光合作用对热的适应中起重要作用。 在本研究中，我们将通过解决以下三个目标来研究叶绿体小HSP如何保护光合作用：（1）确定哪种光合作用蛋白与叶绿体HSP相互作用，（2）确定保护功能需要叶绿体HSP的功能结构域的哪一区域，（3）研究光合耐热性不同的植物叶绿体小HSP的功能效率。 这些研究将增加我们对热胁迫对光合作用的影响以及热休克蛋白在高温下保护光合作用中的作用的理解。 这些信息将增加我们对植物如何生存和适应热胁迫和温暖生境的了解，并将有助于生物工程和作物育种，以提高耐热性。

9728273 Sharkey Heat stress decreases crop productivity and limits plant survival and distribution, in large part by reducing photosynthesis. We have recently shown that the chloroplast small heat-shock protein (HSP) protects photosynthesis during heat stress and is important in acclimation of photosynthesis to heat. In the present research, we will investigate how the chloroplast small HSP protects photosynthesis by addressing the following three objectives: (1) determine which photosynthetic protein interacts with the chloroplast HSP, (2) determine which region of functional domain of the chloroplast HSP is needed for protective function, and (3) examine the functional efficiency of the chloroplast small HSP is species that differ in the heat tolerance of photosynthesis. These studies will increase our understanding of the effects of heat stress on photosynthesis and the role that HSPs play in protecting photosynthesis at high temperatures. Such information will add to our knowledge of how plants survive and adapt to heat stress and warm habitats and will help in the bioengineering and breeding of crop plants for improved thermotolerance.