CAJ | 학술논문

细极链格孢菌蛋白激发子是一种能诱导植物获得系统抗病性的新型蛋白激发子.在湘杂棉3号的主要生育期,用细极链格孢茵蛋白激发子(PEAT)蛋白粗提液进行叶面喷施后,对棉花叶片中酶保护系统的变化进行了研究.结果表明,经细极链格孢菌蛋白激发子诱导后,棉花叶片POD、SOD、NR的活性与C/N比对照显著增加,而MDA含量比对照显著减少.这可能是PEAT影响棉花细胞内微环境的氧化、还原状态激发植株体内酶保护系统,激活植物自身防卫系统与生长系统,从而使棉花产生对病虫害的抗性,促进了植株生长.
세겁련격포균단백격발자시일충능유도식물획득계통항병성적신형단백격발자.재상잡면3호적주요생육기,용세겁련격포인단백격발자(PEAT)단백조제액진행협면분시후,대면화협편중매보호계통적변화진행료연구.결과표명,경세겁련격포균단백격발자유도후,면화협편POD、SOD、NR적활성여C/N비대조현저증가,이MDA함량비대조현저감소.저가능시PEAT영향면화세포내미배경적양화、환원상태격발식주체내매보호계통,격활식물자신방위계통여생장계통,종이사면화산생대병충해적항성,촉진료식주생장.
The protein elicitor from Alternaria tenuissima (PEAT) was previously shown to be an efficient elicitor of induced systematic resistance in several crops. The role of crude extracts of PEAT on enzymatic protection system in cotton leaves by foliar spraying was investigated in growth and development periods of the Hunan Hybrid Cotton 3. Results showed that the activity of POD, SOD, SR and the ratio of C/N increased significantly when PEAT was sprayed on cotton leaves. However, the activity of MDA decreased significantly at the same time. It was speculated that PEAT might affect the redox of microenvironment in cotton leaves. PEAT might elicit the enzymatic protection system and activate the defensive system and growth system. Resistance to disease and pests might be induced and the growth and development might be accelerated in cotton sequentially.