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Fig. 5 | BMC Plant Biology

Fig. 5

From: Floral attractants in the black orchid Brasiliorchis schunkeana (Orchidaceae, Maxillariinae): clues for presumed sapromyophily and potential antimicrobial activity

Fig. 5

The further observations of the epidermis of lip base with flat callus from transmission electron microscopy (TEM) show: a plasmodesmata (asterisk) joining the protoplasts of cells, flocculent osmiophilic lipoid/phenolic material (black arrows), osmiophilic lipoid globules in periplasmic space and osmiophilic phenolic content in the vacuole (white arrows). b magnification of a. c plasmodesmata between cells, osmiophilic phenolic content in the vacuole (white arrows), vesicles in the cytoplasm and periplasmic space (asterisks), flocculent osmiophilic phenolic material, sometimes formed in globules (black arrows). d plastid with lamellae and plastoglobules, vesicles close to the plastid (asterisks), flocculent osmiophilic phenolic material (black arrows) in the vacuole and periplasmic space, osmiophilic phenolic content in the vacuole (black arrows). e subepidermal cell with osmiophilic annular profiles (fully filled with the material) (asterisks) and flocculent precipitates in the vacuole. f osmiophilic content in the vacuole, with numerous vesicles transferring such material inside (arrows). cw—cell wall, ml—middle lamella, p—plastid, ps—periplasmic space, va—vacuole, ve—vesicle

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BMC Plant Biology

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