花生学报
花生學報
화생학보
PEANUT SCIENCE AND TECHNOLOGY
2012年
1期
26-30
,共5页
花生%叶片%衰老%N素代谢
花生%葉片%衰老%N素代謝
화생%협편%쇠로%N소대사
high yield peanut%leaf senescence%nitrogen metabolism
以花生品种粤油7号为材料，以早衰品种粤油5号为对照，对花生叶片衰老过程中N素代谢指标变化进行了研究。结果表明：花生生长期内叶片衰老过程中，硝酸还原酶（NR）活性、可溶性蛋白质含量、游离氨基酸含量、硝态氮含量呈单峰曲线变化，随着叶片的展开、成熟和衰老，先上升后下降，最先开始降低的是游离氨基酸含量，其次是硝酸还原酶（NR）活性和可溶性蛋白质含量，最后是硝态氮含量。
以花生品種粵油7號為材料，以早衰品種粵油5號為對照，對花生葉片衰老過程中N素代謝指標變化進行瞭研究。結果錶明：花生生長期內葉片衰老過程中，硝痠還原酶（NR）活性、可溶性蛋白質含量、遊離氨基痠含量、硝態氮含量呈單峰麯線變化，隨著葉片的展開、成熟和衰老，先上升後下降，最先開始降低的是遊離氨基痠含量，其次是硝痠還原酶（NR）活性和可溶性蛋白質含量，最後是硝態氮含量。
이화생품충월유7호위재료，이조쇠품충월유5호위대조，대화생협편쇠로과정중N소대사지표변화진행료연구。결과표명：화생생장기내협편쇠로과정중，초산환원매（NR）활성、가용성단백질함량、유리안기산함량、초태담함량정단봉곡선변화，수착협편적전개、성숙화쇠로，선상승후하강，최선개시강저적시유리안기산함량，기차시초산환원매（NR）활성화가용성단백질함량，최후시초태담함량。
Changes in nitrogen metabolism indices in peanut leaves during leaf senescence were studied with two peanut cultivars （Yueyou 7 and Yueyou 5） from Guangdong, China. The results were as follows： During the process of leaf growth and senescence, changes in many nitrogen metabo- lism indices such as nitrate reductase （NR） activity, soluble protein （Pr）, free amino acid and saltpe- tre state nitrogen contents in leaves, might be simulated with a unimodal curve. Along with the leaves spreading, maturing and aging, the nitrate reductase （NR） activity, soluble protein （Pr）, free amino acid and saltpetre state nitrogen contents firstly increased, and then decreased. The first parameter of nitrogen metabolism showed a decline with free amino acid NR activity, the second was the nitrate re- ductase （NR） activity and soluble protein （Pr） content while saltpetre state nitrogen declined last.
