褐藻寡糖对翅碱蓬种子萌发及抗盐胁迫能力的影响  

Effects of Brown Algae Oligosaccharides on Seed Germination and Saltresistance of Suaeda heteroptera

作　　者：孙林[1] 陈春琳 钟志海 杨剑超[4] 刘凯 兰翔宇 任承钢[2] 秦松[2] 赵辉[1] 刘正一[2] Sun Lin;Chen Chunlin;Zhong Zhihai;Yang Jianchao;Liu Kai;Lan Xiangyu;Ren Chenggang;Qin Song;ZZhao Hui;JLiu Zhengyi(College of Chemical and Biological Engineering,Shandong University of Science and Technology,Qingdao,266590;Yantai Institute ofCoastal Zone Research,Chinese Academy of Sciences,Yantai,264003;College of Water Resources and Civil Engineering,China Agricultural University,Beijing,100083;Yantai Academy of Agricultural Sciences,Yantai,265500;Dongying Marine Economic Development Research Institute,Dongying,257000;School of Agriculture,Ludong University,Yantai,264025)

机构地区：[1]山东科技大学化学与生物工程学院,青岛266590 [2]中国科学院烟台海岸带研究所,烟台264003 [3]中国农业大学水利与土木工程学院,北京100083 [4]烟台市农业科学研究院,烟台265500 [5]东营市海洋经济发展研究院,东营257000 [6]鲁东大学农学院,烟台264025

出　　处：《分子植物育种》2023年第8期2746-2753,共8页Molecular Plant Breeding

基　　金：江苏省重点研发计划项目(BE2017310-3);烟台市科技计划项目(2020MSGY068,2019YT06000506);山东省重点研发计划项目(2019GNC106110,2019GSF109104)共同资助。

摘　　要：以耐盐植物翅碱蓬为对象,研究了褐藻寡糖对其种子萌发和耐盐能力的影响。对不同盐浓度溶液处理下的翅碱蓬种子施加褐藻寡糖溶液,结果表明,褐藻寡糖在无盐胁迫时可有效提高翅碱蓬种子的萌发率,由66.67%(空白对照组)提升至78.33%(0.02 mg/mL),同时,萌发的幼芽中可溶性糖含量也有较大提升;盐胁迫下,经褐藻寡糖处理的翅碱蓬种子萌发率、芽长均有明显的提升,且幼芽中游离脯氨酸含量也有所增加,且在200 mmol/L及以上盐浓度下效果尤为明显。本研究结果表明,种子在褐藻寡糖的作用下抗盐胁迫能力提高,因此,可初步认为,在高盐环境中褐藻寡糖可促进翅碱蓬幼苗的生长和抗逆能力的提升。The effects of brown algae oligosaccharides on the seed germination and salt-resistance of Suaeda heteroptera were studied.Brown algin oligosaccharide solution was applied to the seeds of Suaeda heteroptera treated with different salt concentrations.The results showed that under no salt stress,alginic oligosaccharides could effectively increase the seed germination rate from 66.67%(blank control group)to 78.33%(0.02 mg/mL),and the soluble sugar content in the germinated sprouts is also increased.Under salt stress,the germination rate and the free proline content in the sprouts of Suaeda heteroptera were significantly increased by algal oligosaccharides,especially at 200 mmol/L or above salt concentration.The results indicated that salt-resistance of Suaeda heteroptera seeds was improved by algal oligosaccharides.Therefore,this study preliminarily suggested that algal oligosaccharides could promote the growth and salt-resistance of Suaeda heteroptera seedlings in the high-salt environment.

关 键 词：翅碱蓬(Suaeda heteroptera Kitagawa) 褐藻寡糖 抗逆性 高盐胁迫 

分 类 号：Q945.78[生物学—植物学]