共查询到20条相似文献,搜索用时 15 毫秒
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M. E. J. Gore 《Ibis》1968,110(2):165-196
A short account of the geography of Sabah, North Borneo, is followed by a survey of the main habitats and bird communities. The greater part of the paper is devoted to a check-list of the birds of Sabah, which incorporates information collected since the standard work on Borneo by Smythies (1960). 504 species belonging to 65 families have been recorded. 相似文献
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THE BIOLOGY OF MYCORRHIZA IN THE ERICACEAE 总被引:2,自引:1,他引:1
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THE BIOLOGY OF MYCORRHIZA IN THE ERICACEAE 总被引:11,自引:4,他引:7
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THE BIOLOGY OF MYCORRHIZA IN THE ERICACEAE 总被引:9,自引:5,他引:4
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THE BIOLOGY OF MYCORRHIZA IN THE ERICACEAE 总被引:10,自引:7,他引:3
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THE BIOLOGY OF MYCORRHIZA IN THE ERICACEAE 总被引:3,自引:3,他引:0
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THE BIOLOGY OF MYCORRHIZA IN THE ERICACEAE 总被引:4,自引:4,他引:0
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THE BIOLOGY OF MYCORRHIZA IN HELIANTHEMUM MILL 总被引:5,自引:4,他引:1
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A quantitative light and electron microscope study of developing and degenerating mycorrhizal arbuscules of Glomus fasciculatum in Zea mays was carried out in order to estimate three parameters during the colonization cycle. These were: 1) Vv(f,c), the fraction of the host cell volume occupied by a volume of fungus; 2) Vv(cy,c), the fraction of the host cell volume occupied by host cytoplasm; 3) Sv(pr,c), the surface-area-to-volume ratio of the host protoplast to the whole host cell. Uninfected cortical cells had an Sv(pr,c) of 0.13 μm2/μm3. As the fungus penetrates the cell wall, the protoplast invaginates, causing a decrease in protoplast volume and an increase in protoplast Sv. The Sv(pr,c) of a cell containing a mature arbuscule is 1.275 μm2/μm3. Because of the shrinkage of the protoplast, the Sv of the protoplast to its own volume rather than the original cell volume is 2.55 μm2/μm3, or almost a 20-fold increase. Total cell size is unaffected. When the arbuscule is mature, the fungus occupies 42% of the cell, with 24% as 1-μm-diam branches, and 18% as trunk. Arbuscular branch formation progresses at a linear rate and is the most important factor in causing the increased host Sv. The correlation coefficient for Vv(br,c) the volume fraction for arbuscular branches, vs. Sv(pr,c) is r = 0.932 (P < 0.001). Degeneration of the arbuscule is marked by a rapid decrease in branches, host Sv, and host cytoplasm. The trunk develops and degenerates at a slower rate than the branches. 相似文献
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RECENT PROGRESS IN THE STUDY OF ENDOTROPHIC MYCORRHIZA 总被引:3,自引:2,他引:1
J. L. HARLEY 《The New phytologist》1950,49(2):213-247
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THE RELATION BETWEEN HOST AND ENDOPHYTE IN ORCHID MYCORRHIZA 总被引:7,自引:5,他引:2