摘要
基利用盆栽试验在正常水分和干旱胁迫条件下研究了灭菌土接种AM真菌摩西球囊霉(Glomus mosseae)和土著AM真菌对油(蒿Artemisia ordosica)生长及叶片保护系统的影响。结果表明,干旱胁迫显著抑制了土著AM真菌对油蒿的侵染,但对G.mosseae的侵染影响较小。正常水分和干旱胁迫条件下,接种AM真菌显著增加了油蒿生物量和干重以及根系含磷量;提高了叶绿素、可溶性糖、可溶性蛋白含量并降低了脯氨酸和丙二醛含量;显著增强了过氧化氢酶(CAT)和过氧化物酶(POD)活性,增强了油蒿对干旱的防御能力。
The effects of arbuscular mycorrhizal fungi （Glomus mosseae and the indigenous AM fungi）on growth and protective system in leaves of Artemisia ordosiea in sterilized soil was studied in potted culture under well-watered and drought stress conditions.The results indicated that indigenous AM fungi colonization on A.ordosiea was significantly decreased by drought stress,but G.mosseae colonization was less affected.The biomass,plant dry weight of A.ordosiea and the content of P in roots were signigicanfly increased by inoculation with AM fungi under well-watered and drought stress conditions.Infection with AM fungi improved the contents of the soluble suger,protein,Chl of leaves, decreased the leaf content of prolein and MDA,and notably promoted the activity of catalase（CAT）and peroxidase（POD）.As a result, the ability of drought defence of A.ordosiea was promoted by inoculation with the AM fungi.
出处
《生物技术通报》
CAS
CSCD
2007年第3期129-133,共5页
Biotechnology Bulletin
基金
国家自然科学基金(40471075)资助
关键词
AM真菌
干旱胁迫
油蒿
保护系统
AM fungi Artemisia ordosica Drought stress Protective system
