菌物学报2025，Vol.44Issue(11)：30-40,11.DOI:10.13346/j.mycosystema.250219
红枫湖齿盾囊霉:贵阳红枫湖边发现的丛枝菌根真菌新种
Dentiscutata hongfenghuana,a new species of arbuscular mycorrhizal fungi from Hongfeng Lake,Guiyang,southwest China
摘要
Abstract
Dentiscutata hongfenghuana,a new species of Dentiscutata(Gigasporaceae,Diversisporales,Glomeromycotina),was discovered from rhizosphere soil of Capsicum annuum surrounding Hongfeng Lake in Qingzhen City,Guizhou Province.The species has colorless and transparent spores that are white to light greenish-yellow,with dimensions of 185-191×298-460 μm.The sporogenous cells are brownish-yellow,nearly spherical to flask-shaped,with a pale yellow to brownish-yellow germination shield 3-8-lobed.The spore wall consists of three layers:outer wall layers(OWL1-3),middle wall layers(MWL1-2),and inner wall layers(IWL1-3).The OW turns rust-colored to reddish-black in Melzer's reagent,the MW shows no reaction,and the IW is stained light pink to deep purplish-red.The nuclear rDNA sequence[covering part of the small subunit(SSU),the entire internal transcribed spacer(ITS),and part of the large subunit(LSU)]supports its placement as a unique evolutionary branch within the genus Dentiscutata.Detailed morphological description,characteristic illustrations,and information of the type specimen are provided,and the distinguishing features of closely related species are discussed.关键词
丛枝菌根真菌/新种/形态学/系统发育分析/分类Key words
arbuscular mycorrhizal fungi/new species/morphology/phylogenetic analysis/classification引用本文复制引用
石维卫,索曼玉,钟小敏,张叶,陶光耀,江龙..红枫湖齿盾囊霉:贵阳红枫湖边发现的丛枝菌根真菌新种[J].菌物学报,2025,44(11):30-40,11.基金项目
国家自然科学基金(32360376)This work was supported by the National Natural Science Foundation of China(32360376). （32360376）
