不同通气条件下硫代硫酸银对马铃薯试管苗生长和抗氧化酶活性的影响

以二倍体马铃薯试管苗为试材,研究不同通气条件下乙烯生理拮抗剂硫代硫酸银(STS)对试管苗生长和抗氧化酶活性影响的结果表明:通气条件下培养的试管苗茎高降低,叶面积和叶绿素含量增加,培养基中附加STS的效果更为明显,无论在通气还是不通气条件下,培养基中加STS的试管苗茎高降低,叶面积和叶绿素含量增加,均达极显著水平.通气和培养基中加STS的试管苗中丙二醛(MDA)含量下降。通气条件下超氧化物歧化酶(要SOD)、过氧化物酶(POD)和过氧化氢酶(CAT)活性提高;培养基中加STS的试管苗中SOD活性提高,POD和CAT活性下降。

Effects of Silver Thiosulfate on the Growth and Antioxidative Enzymes Activities in Tube Seedling of Potato under Aeration and Airtight Conditions

In this paper,the effect of silver thiosulfate (STS) as ethylene activity inhibitor on tube seedlings of diploid potato (Solanum tuberosum) genotype under aeration and airtight conditions were studied.The results showed that shoot height decreased and chlorophyll content and leaf area increased under aeration.The addition of STS in medium had significant effects on the decrease of shoot height and the increase of chlorophyll content and leaf area.Aeration and addition of STS in medium both decreased malondialdehyde (MDA) content. The superoxide dimutase (SOD) and peroxidase (POD) and catalase (CAT) activities increased under aeration. The SOD activity increased while the POD and CAT activities decreased in the medium of addition with STS.