Proteins from the lichenXanthoria parietina which bind to phycobiont cell walls. Correlation between binding patterns and cell wall cytochemistry
Tóm tắt
A protein fraction was isolated from the lichenXanthoria parietina which bound to the appropriate cultured phycobiont, but not to the freshly isolated symbiotic alga. The protein also appeared to discriminate between five other strains of cultured phycobionts from different lichens; phycobionts isolated from lichens in the familyTeloschistaceae bound the protein whereas phycobionts isolated from lichens in other families did not. Using cytochemical techniques, it was shown that protein binding ability was correlated with high levels of acidic polysaccharide in the cell wall, and the presence of a protein coat on the cell wall surface of the phycobiont. The possible role of this protein in recognition between lichen symbionts is briefly discussed.
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