Effects of salt stress on net photosynthetic rate,stomatal conductance,intercellular CO 2 concentration,chlorophyll content,photochemical efficiency of PSⅡ(Fv/Fm)and RuBP carboxylase activity in rice cultivars Pokkali(salt tolerant)and Peta(salt sensitive)were studied.

The results suggested that the photosystem Ⅰ(PSⅠ), photosystem Ⅱ(PSⅡ) and total electron transport activities, RuBP carboxylase (RuBPCase) and carbonic anhydrase (CA) activities in tobacco leaves decreased along with the maturation and senescence of tobacco leaves, especially the PSⅡ electron transport activity and RuBPCase initial activit.

Research on the relationship between the activity of RuBPase and yield and quality of sugarbeet under different nitrogen levels applied;

Qiu Dewen from epiphyte for a period of time,we examined the activities of dehydrogenase and cellulase,RUBPase,the amount of chlorophyll and auxin.

Studies on the Stage Albescent Phenomenon in Tea the Changes of RuBPcase and Proteinase;

Under low phosphorus stress, the inorganic phosphorus content, RuBPcase activity and photosynthetic rate in the rice leaves reduced.

ESTIMATION OF RUBISCO ACTIVITIES WITH GAS CHROMATOGROPHY;

Solution culture, subcellular fractionating procedure, electron microscopy examination and biochemical analysis were used to study the effects of calcium supply on subcellular distribution of cadmium, chloroplast ultrastructure and RuBPC and PEPC activity in maize seedlings under cadmium stress.