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首页> 外文期刊>Pakistan journal of botany >Seed reserve utilization and hydrolytic enzyme activities in germinating seeds of sweet corn
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Seed reserve utilization and hydrolytic enzyme activities in germinating seeds of sweet corn

机译：种子储备利用率和水解酶活性在甜玉米发芽种子

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摘要

In this study, two sh 2 sweet corn cultivars (i.e., the initial seed dry weight for FT018 and TB010 was 0.16±0.02 g/grain and 0.09±0.01 g/grain, respectively) were used to determine the physiological characteristics of seed reserve utilization in germination. The data implied that the weight of mobilized seed reserve (WMSR) and seed reserve utilization efficiency (SRUE) increased with seed germination. FT018 exhibited higher SRUE than TB010 due to its sufficient energy production for growth. Sugar (sucrose and fructose) contents were at different levels in the germinating seed of sh 2 sweet corn. The protein content and number of protein species were highest in the early stage of germination. Enzyme activity in the germinating seed indicated that enzymes for starch and sugar hydrolysis were important and that enzyme activities significantly differed at each germination stage and between the cultivars under dark conditions. Succinate dehydrogenase, sucrose synthase, and glucose-6-phosphate dehydrogenase accumulated in the late germination stage. Thus, appropriate efforts should be focused on improving the seed reserve utilization in sweet corn by identifying the physiological mechanism of germinating seed.
机译：在该研究中，两种SH 2甜玉米品种（即FT018和TB010的初始种子干重为0.16±0.02g /粒，分别用于确定种子储备利用的生理特性发芽。数据暗示动员的种子储备（WMSR）和种子储备利用效率（SRUE）的重量随种子萌发而增加。由于其足够的能量产生，FT018表现出高于TB010的增长。糖（蔗糖和果糖）含量在SH 2甜玉米的发芽种子中不同水平。萌发早期蛋白质含量和蛋白质物种的数量最高。发芽种子中的酶活性表明，淀粉和糖水解的酶是重要的，并且在每个萌发阶段和暗症条件下的品种之间具有显着不同的酶活性。琥珀酸脱氢酶，蔗糖合成酶和葡萄糖-6-磷酸脱氢酶积累在晚期发芽阶段。因此，通过鉴定发芽种子的生理机制，应侧重于改善甜玉米中的种子储备利用的适当努力。

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