高温胁迫下AM真菌对牡丹叶片解剖结构和蒸腾特性的影响  

Effects of Arbuscular Mycorrhizal Fungi on Leaf Anatomical Structure and Transpiration of Paeonia suffruticosa under High Temperature Stress

作　　者：郭绍霞[1] 王政军[1] 赵廷武 

机构地区：[1]青岛农业大学菌根生物技术研究所,山东青岛266109 [2]安丘市汶河生态林场管委会

出　　处：《青岛农业大学学报（自然科学版）》2011年第3期165-167,173,共4页Journal of Qingdao Agricultural University(Natural Science)

基　　金：国家自然科学基金(No.30871737);青岛市自然科学基金(No.08-1-3-20-jch)

摘　　要：作者研究了高温胁迫下丛枝菌根(arbuscular mycorrhizal,AM)真菌对盆栽牡丹幼苗叶片解剖结构和蒸腾特性的影响。结果表明,供试AM真菌摩西球囊霉(Glomus mosseae)和地表球囊霉(Glomus versiforme)均能侵染牡丹根系,其侵染率分别为47%和44%。接种AM真菌的比未接种对照(CK)植株的叶片细胞排列紧密,叶片厚度、栅栏组织和海棉组织厚度均表现为接种G.mosseae植株>接种G.versiforme植株>CK。在相同高温下接种AM真菌处理的牡丹叶片蒸腾速率、气孔导度和气孔开度均显著低于CK。AM真菌提高了牡丹植株的抗热性,这对于高温胁迫下保持和提高光合效率是十分重要的。其中接种G.mosseae处理的效果优于G.Effects of arbuscular mycorrhizal （ AM ） fungi on leaf anatomical structure and transpiration characteristics of tree peony （ Paeonia suffruticosa ） were investigated with pot experiment under high temperature stress. Results showed that the tested AM fungus Glomus mosseae and Glomus versiforme colonized tree peony, with 47% and 44% colonization percentage respectively. The leaf cell arrangement were closer in mycorrhizal seedlings than that of in CK. Leaf thickness, palisade tissue, and spongy tissue thickness of plants inoculated with G. mosseae were greater than that of G. versiforme and CK. Under the same high temperature, transpiration rate, stomatal conductance and stomatal aperture of plants inoculated with AM fungi were less than that of CK. AM fungi increased tree peony ＇ s heat resistance. G. mosseae showed superior effects than G. versiforme.

关 键 词：牡丹 AM真菌 叶片解剖结构 蒸腾特性 

分 类 号：S688.9[农业科学—观赏园艺]