盐胁迫下星星草种子的抗氰呼吸

THE CYANIDE RESISTANT RESPIRATION OF PUCCINELLIA TENUIFLORA SEEDS UNDER SALT STRESS

在不同浓度的碱性盐胁迫下测定了星星草种子萌发过程的正常呼吸和抗氰呼吸速率,结果表明盐胁迫诱导萌发星星草种子的抗氰呼吸途径,并且在0.4％-1.2％的盐浓度范围内,抗氰呼吸速率高于正常呼吸速率.盐胁迫下萌发星星草种子的抗氰呼吸速率呈单峰曲线,峰值出现在0.6％盐浓度下.

The rates of normal respiration and cyanide resistant respiration were measured during the gemination of Puccinelliu tenuiflora seeds under different concentration of alkaline salt stress. The results show that salt stress induce the P. tenuiflora seeds to cyanide resistant respiration pathway, and the rate of cyanide resistant respiration is higher that the normal respiration in the salt concentration of 0. 4%-1. 2%. The rate of cyanide resistant respiration of P. tenuiflora seeds under salt stress is singlet curve, and the peak apperars at the salt concentration of 0. 6%.