3株菌根真菌对海南钻喙兰幼苗生长的影响  

Effects of three kinds of mycorrhizal fungi on growth of Rhynchostylis gigantea seedling

作　　者：陈金花[1] 王存[1] 黄素荣[1] 杨光穗[1] CHEN Jin-hua WANG Cun HUANG Su-rong YANG Guang-sui(Tropicl Crops Genetic Resoures Institute, Chinese Academy of Tropical Agricultural Sciences/ The Engineering Technology Research Center of Tropical Ornamental Plant Germplasm Innovation and Utilization, Hainanprovinee/Key laboratory of Corp Gene Resources and Germplasm Enhancement in Southern China, Danzhou 571737, China)

机构地区：[1]中国热带农业科学院热带作物品种资源研究所/海南省热带观赏植物种质创新利用工程技术研究中心/农业部华南作物基因资源与种质创制重点开放实验室,海南儋州571737

出　　处：《广东农业科学》2017年第4期46-52,F0002,共8页Guangdong Agricultural Sciences

基　　金：海南省自然科学基金(20153114);中央级公益性科技研院所基本科研业务费专项(1630032…014027);农业公益性行业科研专项(201203071)

摘　　要：为了解菌根真菌对海南钻喙兰(Rhynchostylis gigantea)无菌组培苗生长的影响,研究共生培养90 d后3株菌根真菌对组培苗的鲜重、根数、叶数、叶绿素、蛋白质、核酸、光合特性等指标的影响。结果表明,菌根真菌W01和W02对植株的生长均有促进作用,其中W02显著提高植株的鲜重增长量,W01显著提高了植株可溶性糖、可溶性蛋白与核酸含量,S01对植株有致病性;海南钻喙兰的光合途径含有CAM途径,为兼性CAM植物,接种W01处理的植株其叶绿素a+b含量显著高于对照,并提升了植株的光合能力。In order to study the effects of three kinds of mycorrhizal fungi on growth of Rhynchostylis gigantea seedling,we analyzed the morphological index,nutrient content and photosynthetic capacity after inculating for 90 d. Results showed that,compared with the control group,mycorrhizal fungi increased the fresh weitht;W01 and W02 had promoting effect on the growth of plants,W02 significantly increased plant fresh weight;W01 significantly increased the soluble sugar,soluble protein and nucleic acid content. S01 had pathogenicity to R. gigantea seedling.Photosynthetic pathway of R. gigantean was Crassulacean acid metabolism. The chlorophyll a＋b content of plant inoculated W01 was significantly higher than that of control. W01 enhanced the photosynthetic rate of seedling.

关 键 词：菌根真菌 光合特性 海南钻喙兰 

分 类 号：S682.31[农业科学—观赏园艺]