Effects of nitrogen forms on the content of wheat chlorophyll-protein complexes and Hill reaction activity
Different forms of nitrogen were applied on water-cultivated wheat seedling. The results showed that the amounts of 31~43 kD polypeptides of LHCⅡ and the contents of chlorophyll-protein complexes of PS I were increased to a top rate at 50% NH4+ - N + 50% NQ3- - N, while they reached to the lowest point when used any form of nitrogen separate. The absorption spectra of chloroplast thylakoid-membrane (normal temperature) and the contents of chlorophyll and chlorophyll protein reached to the tiptop at 50 % NH4+ - N + 50% NO3- — N and they reached to the lowest point when used any form of nitrogen separate. The Hill reaction activity decreased as the rate of NH4+ - N decreased.
国家科技期刊平台
NSTL
万方数据
维普
