西南林业大学学报2025，Vol.45Issue(7)：49-54,6.DOI:10.11929/j.swfu.202409041
海藻糖对低温胁迫亚洲百合幼苗生长及生理响应的影响
Effect of Trehalose on the Growth and Physiological Response of Lilium Asiatic hybrids Seedlings Under Low Temperature
摘要
Abstract
Using Lilium Asiatic hybrids seedlings as experimental materials,the effect of trehalose(0,10,15,25,35 mmol/L)on the growth of L.Asiatic hybrids seedlings was studied by spraying the leaves and then subjecting them under 4 ℃ low temperature.The research results indicated that spraying appropriate concentrations of tre-halose on the leaves promoted seedling growth under low temperature.Treatment with 15 mmol/L trehalose can increase the dry and fresh qualities of the aboveground and underground parts.The fresh qualities of plant in-creased by 41.86％and the net growth rate of plant height increased by 1.43 times.Trehalose treatment enhanced chlorophyll and carotenoid in leaves,reduced the degradation of total chlorophyll in photosynthetic pigments by 57.34％,and supported the seedling growth as well as the accumulation of plant biomass.It can enhance the con-tent of 25.50％soluble protein,48.19％soluble sugar,proline,and the activity of antioxidant enzymes POD,SOD,CAT,and APX in the leaves,reduce the content of H2O2,O2-,and MDA,promote the accumulation of osmoregu-latory substances,thereby improving the cold resistance and alleviating the damage of low temperature stress to L.Asiatic hybrids seedlings to a certain extent.关键词
亚洲百合/外源海藻糖/叶片喷施/低温胁迫/生长Key words
Lilium Asiatic hybrids/exogenous trehalose/leaf spraying/low temperature stress/growth分类
农业科技引用本文复制引用
李佶憓,刘芳,杨春辉,夏彤,张子烨,袁硕,张学通..海藻糖对低温胁迫亚洲百合幼苗生长及生理响应的影响[J].西南林业大学学报,2025,45(7):49-54,6.基金项目
黑龙江八一农垦大学人才培育项目(ZRCPY201918)资助 （ZRCPY201918）
黑龙江八一农垦大学大学生创新创业训练计划项目(XC2023027)资助. （XC2023027）
