CAJ | 학술논문

在黑暗条件下干露胁迫处理孔石莼的叶状体,测定其叶绿素a、脯氨酸、可溶性糖、丙二醛的含量以及过氧化物酶（POD）的活性随不同处理时间段（0、0.5、1、2、4、6h）的变化.实验结果显示：孔石莼的各项生理指标与对照组（未经干露处理）相比,除叶绿素a的含量逐渐下降外,其余各项生理指标均出现上升的趋势,其中脯氨酸的含量和POD活性均在4h后急剧升高;经6h胁迫后复水,各指标均有不同程度的恢复.这说明孔石莼对黑暗条件下的干露有一定的适应性,该结果可为孔石莼干露适应的生理机制提供参考.
재흑암조건하간로협박처리공석순적협상체,측정기협록소a、포안산、가용성당、병이철적함량이급과양화물매（POD）적활성수불동처리시간단（0、0.5、1、2、4、6h）적변화.실험결과현시：공석순적각항생리지표여대조조（미경간로처리）상비,제협록소a적함량축점하강외,기여각항생리지표균출현상승적추세,기중포안산적함량화POD활성균재4h후급극승고;경6h협박후복수,각지표균유불동정도적회복.저설명공석순대흑암조건하적간로유일정적괄응성,해결과가위공석순간로괄응적생리궤제제공삼고.
Some physiological indices including the contents of chlorophyll a,proline,soluble sugar,MDA and the activity of POD of Ulva pertusa in the dark under drought exposure stress at different times（0,0.5,1,2,4,6 h） are measured and recorded.The results showed that all the physiological indices measured ascended except for the chlorophyll a by contrast with controling untreated Ulva pertusa,the content of proline and the activity of POD are both ascended sharply after 4 hours treatment among them;all the indexes are recovered in different degrees after stress for 6 hours recovering.It shows that the algae has an ability to adapt drought exposure stress in the dark physiologically and biochemically,and the results provid some references for researchers who study the mechanism of drought exposure resistance.