Effect of chemical gametocide No.1 on amino acid cotents in the anthers of cotton
WANG Qiang, LI Xue gang, WANG Bang jun, YE Xia (Central Laboratory, Southwest Agricultural University,Chongqing,400716,China)
The contents of amino acids in cotton anthers were determined after spraying chemical gametocide No.1 (CHA 1) and its two improved formulae. The results showed that the contents of 5 amino acids Met, Ile, Leu, His and Tyr were not influenced by CHA 1 while the contents of other 11 amino acids Pro, Asp, Glu, Phe, Lys, Val, Thr, Ser, Gly, Arg and Ala were influenced to different extents. Proline alone or together with glutamic acid was added into CHA 1 to male the improved formulae of CHA 1, the contents of Pro, Glu, Phe, Lys, Thr and Gly in anthers after spraying the improved CHA 1 were close to those of the control anthers. But the contents of other amino acids kept unchanged compared to those of the anthers spraying with CHA 1. Although the three formulae had the similar efficacy in induction of made sterility, the side effect caused by the two improved prescriptions was remarkedly lower than that caused by CHA 1. It is assumed that the metabolic disturbance of amino acids might be one of the sterility inducing mechanisms of CHA 1.