海藻糖对盐胁迫下薄皮甜瓜幼苗抗氧化系统的影响  

Effect of Trehalose on Antioxidant System of Melon Seedling Under Salt Stress

作　　者：徐婷[1] 周传余[1] 周超[1] 赵索[1] 武琳琳[1] 谭可菲[1] 

机构地区：[1]黑龙江省农业科学院齐齐哈尔分院,黑龙江齐齐哈尔161000

出　　处：《北方园艺》2014年第19期28-30,共3页Northern Horticulture

摘　　要：以薄皮甜瓜"齐甜一号"品种为试材,采用盆栽试验法,研究了叶面喷施不同浓度海藻糖对NaCl胁迫下薄皮甜瓜幼苗抗氧化系统的影响,为进一步探究海藻糖对NaCl胁迫下薄皮甜瓜耐盐性的影响提供参考。结果表明:0.4%NaCl胁迫下,当海藻糖浓度为0.4%时,显著降低了薄皮甜瓜O·2产生速率、质膜相对透性及MDA含量;显著增加了薄皮甜瓜SOD活性和POD活性;说明0.4%浓度海藻糖可有效提高薄皮甜瓜抗氧化系统的能力,有效缓解盐胁迫对甜瓜的伤害。Taking melon variety‘Qitian No.1＇as material,using pot experment,the effect of trehalose foliar spraying treatment on antioxidant system of melon was studied,in order to understand the effect of trehalose on salt tolerance of melon.The results showed that when NaCl stress was 0.4% and trehalose concentration was 0.4%,it significantly reduced melon O2^-· production rate,cell membrane permeability and MDA,significantly increased activities of SOD and POD.It showed 4%concentration of trehalose could effectively improve the ability of melon antioxidant system,and could effectively alleviate melon salt stress on the injury.

关 键 词：薄皮甜瓜 海藻糖NaCl胁迫 抗氧化系统 

分 类 号：S652[农业科学—果树学]