The nuclear CT311 may promote chlamydial exiting and spreading by altering host nuclear machineries. Efforts are under way to addition chronic accumulation triggers reduction sst level further investigate the function of CT311 both in the host cell cytosol and nucleus. As a result of greenhouse effect, global warming is predicted to persist in the future, and an increased frequency of periods with exceptionally high temperatures is one of the most important characteristics of global warming. 
Heat stress is generally defined as a rapid and great elevation in ambient temperature. Unlike moderate high temperature stress, a short period of heat stress is enough to provoke severe cellular injury. Photosynthesis is susceptible to high temperature, and high temperature is liable to impair photosynthetic apparatus in plants. Photosynthetic electron transport from water to NADP + is driven by photosystem II and photosystem I. PSII is highly sensitive to high temperature, and heat-induced injury on PSII certainly can inhibit photosynthetic electron transport. However, it is still unclear about the responses of photosynthetic liner electron transport process, particularly the interaction between PSII and PSI in plants under heat stress. Chlorophyll a fluorescence transient has been widely used to study PSII performance in plants under environmental stresses, and it is accepted as a convenient tool to diagnose plant health status. Under high temperature stress, PSII performance usually deceased in plants, and OJIP transient could obviously change. In recent ten years, a series of studies have clearly revealed the biological meanings of kinetic phases in this transient. In addition, PSI redox change can be detected by the change in modulated 820 nm reflection, as they significantly correlate with each other. At present, simultaneous detecting OJIP and 820 nm reflection transients served as a feasible way to explore photosynthetic electron transport process and the interaction between PSII and PSI. By using this technique, the effects of chilling and dehydration on photosynthetic electron transport chain were recently reported in apple and cucumber leaves, but responses of photosynthetic electron transport chain to heat stress remains to be elucidated. Sweet sorghum is an annual C4 crop with fast growth rate and high biomass yield. Sweet sorghum is consumed as human food and livestock feed. In addition, it is an important bio-energy crop, as the stalks are rich in fermentable sugars. To date, many studies focus on the procedure of producing bio-energy with sweet sorghum as materials under the tendency of gradual shrink of ordinary energy source such as coal, oil and natural gas. However, a few of studies pay attention to the relationship between environmental stresses and physiological responses in sweet sorghum, and moreover, these studies mainly associate with salt stress. To our knowledge, effects of high temperature on sweet sorghum have not been reported. Sweet sorghum has been recognized as a promising crop species for exploiting saline land in coastal zone in China.