| Effects of nitrogen forms on the content of wheat chlorophyll-protein complexes and Hill reaction activity |
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| DOI：10.7606/j.issn.1000-7601.2007.04.31 |
| Key Words: wheat nitrogen rate chlorophyll-protein complex Hill reaction activity |
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| Abstract: |
| 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 PSⅠwere increased to a top rate at 50% NH+4-N+50% NO-3-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% NH+4-N+50% NO-3-N and they reached to the lowest point when used any form of nitrogen separate. The Hill reaction activity decreased as the rate of NH+4-N decreased. |