仲恺农业工程学院学报
仲愷農業工程學院學報
중개농업공정학원학보
Journal of ZhongKai University of Agriculture and Technology
2015年
3期
9-11,30
,共4页
紫苜蓿(MedicagosativaLinn.)%低温胁迫%抗寒性%生理特性
紫苜蓿(MedicagosativaLinn.)%低溫脅迫%抗寒性%生理特性
자목숙(MedicagosativaLinn.)%저온협박%항한성%생리특성
Medicago sativa Linn.%low temperature stress%cold resistance%physiological characteristics
以紫苜蓿 (Medicago sativa Linn.) 'WL525' 为试验材料, 通过低温处理4 d, 就低温胁迫对紫苜蓿中丙二醛 (Malondialdehyde, MDA) 浓度、 相对电导率、 过氧化物酶 (Peroxidase, POD) 活性和可溶性糖质量浓度变化的影响进行了研究.结果表明: 随着低温胁迫时间的延长, 紫苜蓿 'WL525' 叶片细胞中的MDA浓度总体呈现升高的趋势, POD酶活性呈现出先增加后降低的趋势, 可溶性糖质量浓度和相对电导率均呈现出升高的趋势.4个生理指标均与紫苜蓿 'WL525' 的抗寒性有密切联系, 紫苜蓿 'WL525' 通过增加POD酶活性和可溶性糖的质量浓度来调节低温对其造成的伤害.
以紫苜蓿 (Medicago sativa Linn.) 'WL525' 為試驗材料, 通過低溫處理4 d, 就低溫脅迫對紫苜蓿中丙二醛 (Malondialdehyde, MDA) 濃度、 相對電導率、 過氧化物酶 (Peroxidase, POD) 活性和可溶性糖質量濃度變化的影響進行瞭研究.結果錶明: 隨著低溫脅迫時間的延長, 紫苜蓿 'WL525' 葉片細胞中的MDA濃度總體呈現升高的趨勢, POD酶活性呈現齣先增加後降低的趨勢, 可溶性糖質量濃度和相對電導率均呈現齣升高的趨勢.4箇生理指標均與紫苜蓿 'WL525' 的抗寒性有密切聯繫, 紫苜蓿 'WL525' 通過增加POD酶活性和可溶性糖的質量濃度來調節低溫對其造成的傷害.
이자목숙 (Medicago sativa Linn.) 'WL525' 위시험재료, 통과저온처리4 d, 취저온협박대자목숙중병이철 (Malondialdehyde, MDA) 농도、 상대전도솔、 과양화물매 (Peroxidase, POD) 활성화가용성당질량농도변화적영향진행료연구.결과표명: 수착저온협박시간적연장, 자목숙 'WL525' 협편세포중적MDA농도총체정현승고적추세, POD매활성정현출선증가후강저적추세, 가용성당질량농도화상대전도솔균정현출승고적추세.4개생리지표균여자목숙 'WL525' 적항한성유밀절련계, 자목숙 'WL525' 통과증가POD매활성화가용성당적질량농도래조절저온대기조성적상해.
Medicago sativa Linn.WL525 was treated by low temperature stress for 4 d and the content of MDA and soluble sugar, POD activity, and relative conductivity were measured.The results showed that under low temperature stress, the MDA content in leaves cells of Medicago sativa Linn.WL525 showed increasing trend;POD activity increased first and then decreased;the soluble sugar content and the rela-tive conductivity showed increasing trend.These four kind of physiological indexes related closely to the cold hardiness of Medicago sativa Linn.WL525.The increased content of soluble sugar and POD activity adjust the WL525 plant to the damage caused by temperature stress.
