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MORE IMAGES FROM CHAPTER 5
Fig 5.9c Scanning electron micrograph of a mature sclerotium of the mycorrhizal fungus Paxillus involutus. This sclerotium developed from nutrients that were translocated along a mycelial cord (an aggregated mass of hyphae) shown at the bottom of the image. [Image by courtesy of F.M.Fox; Transactions of the British Mycological Society (1986) 87, 627-631]. [This image can be reproduced; please acknowledge the source as: courtesy of F.M.Fox]
Fig 5.9d Sclerotia Scanning electron micrograph of a cut sclerotium of Cenococcum geophilum (a mycorrhizal fungus), showing the internal zonation of the tissues. [Image by courtesy of F.M.Fox; Transactions of the British Mycological Society (1986) 87, 627-631]. [This image can be reproduced; please acknowledge the source as: courtesy of F.M.Fox]
Fig. 5.10. Conservation of mycelial carbon (glucose equivalents) and nitrogen (glycine equivalents) into newly formed sclerotia of Athelia rolfsii, 4 days after mycelial mats were transferred to starvation conditions. The values shown are percentages of the original carbohydrate or nitrogen in the mycelial mats that became incorporated into sclerotia or that were lost by respiration or by leakage into the glass beads on which the mycelial mats were incubated. [Reproduced from C.Christias & J.L.Lockwood (1973) Phytopathology 63, 602-605]
Fig. 5.11. Fruitbodies and mycelial cords of a puffball (Lycoperdon sp.) growing on decayed wood. [© Jim Deacon]
Fig. 5.12. Scanning electron micrograph of a mycelial cord of the mycorrhizal fungus Leccinum scabrum, broken to show the internal distribution of hyphae. The wide, central vessel hyphae (vh) are surrounded by narrower sheathing hyphae (sh). The surface of the mycelial cord is covered with extracellular matrix materials, and hyphae (e.g. arrow) radiate into the soil to explore for nutrients. [This image can be reproduced. Please acknowledge the source as: courtesy of Dr F. M. Fox]
Fig. 5.13. Transmission electron micrograph of a section of a mycelial cord of Leccinum scabrum, showing wide, thick-walled, empty vessel hyphae (vh), thin-walled sheathing hyphae (sh) and abundant intercellular matrix material (m). Some hyphae (labelled d and also near the top right) have been sectioned through dolipore septa. [This image can be reproduced. Please acknowledge the source as: courtesy of Dr F. M. Fox]
Fig 5.14a Armillariella mellea, the ‘boot-lace fungus’, growing on a decaying tree trunk, with the typical fruiting bodies of Armillaria.[© Jim Deacon]
Fig 5.14b Thick, black rhizomorphs of Armillaria that grow beneath the bark of dead trees and translocate nutrients through the surface layers of woodland soils. [© Jim Deacon]
Fig. 5.15. Diagrammatic representation of a rhizomorph of Armillaria [© Jim Deacon] |
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