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Ecological variables influencing the diversity and distribution of macrolichens colonizing Quercus leucotrichophora in Uttarakhand forest

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Journal of Mountain Science 2018年第2期15卷 307-318页

作者： Shashi UPADHYAY arun k.jugran Yogesh JOSHI Renu SUYAL Ranbeer S.RAWAL Lichenology laboratory S.S.J.Campus Kumaun University Biodiversity Conservation & Management Ecosystem Services and Climate Change Group G.B.Pant National Institute of Himalayan Environment and Sustainable Development G.B.Pant National Institute of Himalayan Environment and Sustainable Development Garhwal Unit

Ecological variables play a significant role in determining the diversity and distribution of any living organism on earth. Lichens are not exceptional and are quite sensitive in comparison to other organisms; hence the present study focuses on the impact of ecological variables on the diversity and distribution of epiphytic macrolichens colonizing Quercus leucotrichophora across eight different sites(50 m × 50 m) in Thal ke Dhar forest, kumaun Himalaya, Uttarakhand, India. For sampling of macrolichens, 200 trees(25 trees from each site) of *** were selected from each site and five quadrats of 5 cm × 10 cm(1000 quadrats in totality) were drawn at the tree trunk. From all the sampled trees, a total of 54 species of epiphytic macrolichens belonging to 18 genera and five families were recorded. Various ecological variables, namely altitude, aspect, slope, diameter at breast height(DBH), and lopping percent(partial cutting of the twigs as disturbance), were also analyzed to investigate their influence on macrolichen species composition and distribution pattern in the study area. For the determination of relationships between these variables, statistical analysis, namely Pearson's Correlation Coefficient, Polynomial regression analysis and Principal Component Analysis(PCA)were performed. Out of all variables, lopping was significantly correlated to species richness of epiphytic macrolichens(0.712~*, pkey parameter incontrolling the diversity and distribution not only of epiphytic macrolichens but also of other life forms such as bryophytes, pteridophytes, insects, birds *** can be either negatively or positively correla

关键词：分发模式殖民地生态森林附生植物关联系数统计分析主要部件

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Characterization of Agro-diversity by Seed Storage Protein Electrophoresis:Focus on Rice Germplasm from Uttarakhand Himalaya,India

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Rice science 2010年第2期17卷 122-128页

作者： arun jugran Indra D.BHATT Ranbeer S.RAWAL G.B.Pant Institute of Himalayan Environment and Development Kosi-Katarmal

The characteristics of 48 rice varieties from Uttarakhand Himalaya, India were detected by morphological and biochemical markers. The grains of the selected rice varieties varied in their morphological （grain length, grain width and grain weight） and biochemical characters （sodium dodecyl sulfate polyacrylamide gel electrophoresis, SDS-PAGE）. Based on the presence of 70, 65, 60, 57, 37-39, 22-23, 13 and 10 kDa protein bands in the 48 rice varieties, seven types of profiles were identified. An unweighted pair group average method with arithmetic mean （UPGMA） dendrogram based on cluster analysis of genetic similarity of the protein bands showed two distinct groups with 1%-78% similarity coefficients. The presence of characteristic bands in selected varieties is a useful parameter for identification of rice germplasm.

关键词： rice seed storage protein sodium dodecyl sulfate polyacrylamide gel electrophoresis genetic diversity polymorphism varietal identification

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