Amel Ghazi-Yaker, B. Kraak, J. Houbraken, K. Houali, N. Saadoun
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引用次数: 0
Abstract
ABSTRACT In this study, the diversity of endophytic and epiphytic fungi communities was evaluated and compared from healthy, symptomless and green leaves of the medicinal plant Ziziphus lotus (wild jujube) growing in Northern Algeria. Culture-based methods were used to isolate the endophytes and epiphytes. Morphological and molecular analyses were applied for identification of the fungi taxa. Both communities of the phylloplane of Ziziphus lotus differed in size and composition. Out of all 52 species, 19 were identified as epiphytic fungi and 45 as endophytes with 12 species shared by the two communities (Aspergillus costaricaensis, A. tubingensis, Aureobasidium sp., Cladosporium asperlatum, C. halotolerans, C. limoniforme, Penicillium chrysogenum, P. desertorum, P. flavigenum, P. momoii, Stemphylium sp. and Trichothecium crotonigenum). The two communities were found to be moderately similar (Sørensen similarity index = 0.37). Higher diversity values were found in endophytic community compared to epiphytic community: Shannon's diversity index H' (3.29 vs 1.83), Simpson diversity index C' (0.94 vs 0.74), species richness (3.06 vs 0.46) and species evenness (0.86 vs 0.62). Additionally, the correlation matrix was generated for the identification of possible interactions between different fungi.
摘要本研究从阿尔及利亚北部药用植物酸枣(酸枣)的健康、无症状和绿色叶片中评估和比较了内生真菌和附生真菌群落的多样性。采用基于培养的方法分离内生菌和附生菌。应用形态学和分子分析方法对真菌分类群进行了鉴定。两个叶平面群落的大小和组成不同。在所有52个物种中,19个物种被鉴定为附生真菌,45个物种被确定为内生真菌,其中12个物种由两个群落共有(肋曲霉菌、A.tubingensis、Aureobasidium sp.、Cladosporium asperlatum、耐盐C.、柠檬形C.、产黄青霉、产黄假单胞菌、产莫莫伊假单胞菌(P.momooii)、Stemphylium sp.和产crotonigenum Trichothecium)。发现这两个群落适度相似(Sørensen相似性指数=0.37)。与附生群落相比,内生群落的多样性值更高:Shannon多样性指数H'(3.29 vs 1.83)、Simpson多样性指数C'(0.94 vs 0.74)、物种丰富度(3.06 vs 0.46)和物种均匀度(0.86 vs 0.62)。此外,生成相关矩阵,用于识别不同真菌之间可能的相互作用。
期刊介绍:
POLISH JOURNAL OF ECOLOGY (formerly Ekologia polska) publishes original scientific research papers dealing with all aspects of ecology: both fundamental and applied, physiological ecology, evolutionary ecology, ecology of population, community, ecosystem, landscape as well as global ecology. There is no bias regarding taxons, ecosystems or geographical regions.