中山大学学报（自然科学版）Issue(2)：106-111,6.DOI:10.13471/j.cnki.acta.snus.2015.02.021
东寨港红树林丛枝菌根真菌侵染和孢子密度及其影响因子研究
Arbuscular Mycorrhizal Fungi Colonization and Spore Density in Mangrove Species and Their Influence Factors in Dongzhaigang Nature Reserve
摘要
Abstract
Arbuscular mycorrhizal (AM)fungi exist in the root of a variety of mangrove plants,but our current research has failed to explain the reason and situation of their existence.This study intended to explore the AM fungi status and their influencing factors in mangrove species in Dongzhaigang National Nature Reserve.16 mangrove species were investigated for their AM colonization rate,rhizosphere soil AM fungi spore density and soil parameters.The results showed that 12 of the total 16 plant species exis-ted AM colonization,among which Excoecaria agallocha,Clerodendrum inerme,Pongamia pinnata and Hibiscus tiliaceus showed higher colonization rate than others (above 55%).AMfungi spores were detec-ted from all rhizosphere soil samples,and the average AM fungi spore density was 25.7 ±2.7 spores per 25 g air dried soil.One-way analysis of variance (ANOVA)revealed that AM colonization status was sig-nificantly different among different host plants.Tide level could also significantly influence AM coloniza-tion rate and spore density.Both AM colonization rate and spore density were significantly higher in high tide level than middle or low tide level,but no difference existed between middle and low tide level.Lin-ear regression analysis showed that soil moisture content,electrical conductivity and available P content may be the main influencing soil factors of AM fungi in Dongzhaigang mangrove ecosystem.关键词
东寨港/红树林/丛枝菌根/侵染率/孢子密度/影响因子Key words
Dongzhaigang/mangrove/arbuscular mycorrhiza/colonization rate/spore density/influ-ence factors分类
生物科学引用本文复制引用
胡文武,吴勇,郭健桦,彭雪,辛国荣,钟才荣..东寨港红树林丛枝菌根真菌侵染和孢子密度及其影响因子研究[J].中山大学学报（自然科学版）,2015,(2):106-111,6.基金项目
国家自然科学基金资助项目（31371567）；广东省自然科学基金资助项目 （）
