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信阳裸子植物枝栖真菌初步研究 总被引：1，自引：0，他引：1
[目的]了解信阳地区裸子植物枝栖真菌的生态分布特征。[方法]通过采样、分离培养与鉴定,对信阳地区裸子植物枝栖真菌进行了初步调查研究。[结果]信阳裸子植物枝栖真菌分属5科9属20种,以半知菌种类最多,其次为接合菌,未发现担子菌和子囊菌。在裸子植物枝上,木霉属真菌分布普遍,种类丰富。Rhizopus nigricans、R．oryzae、Trichoderma harzianum、T.aureoviride、Trichoderma sp．1、Trichoderma sp．2、Alternaria tenuis、Pestalotiopsis sinensis、Pestalotiopsis sp．和Fusarium oxysporum的分离率均高于10％。[结论]信阳裸子植物枝栖真菌由半知茵与接合菌构成,其中半知菌占多数。木霉为裸子植物常见的枝栖真菌,其种类多,分布广。信阳地区水杉枝栖真菌的种类最丰富,龙柏枝栖真菌的种类较少。 相似文献
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Mohamad Hassanzadeh-Khayyat Maryam Akaberi Hamideh Moalemzadeh Haghighi Amirhossein Sahebkar Seyed Ahmad Emami 《林业研究》2019,(2):429-433
Epicuticular waxes have vital roles in the growth and development of plants and in defense. Conifers have a considerable amount of waxes on their cones and leaves.Here we characterized the n-alkane composition of Iranian conifers, including Juniperus oblonga, J. foetidissima, J.sabina, J. communis subsp. hemisphaerica, J. excelsa,Cupressus sempervirens, Platycladus orientalis from Cupressaceae and Taxus baccata from Taxaceae for the first time using GC-FID analyses. In the waxes, 25 n-alkane homologs with chain lengths ranging from C7 to C32 were identified. Short-chain n-alkanes were dominant in almost all samples with some exceptions. Complementary studies to elucidate complete wax constituents of Iranian conifers and n-alkane distribution pattern as a function of geographical and bioclimatic variables are recommended. 相似文献
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