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Carbon dioxide blocks the stigma callose response following incompatible pollinations in Brassica

1984; Wiley; Volume: 7; Issue: 4 Linguagem: Inglês

10.1111/1365-3040.ep11589475

1365-3040

Patricia O'Neill, Mohan B. Singh, T. F. NEALES, R. B. Knox, Elizabeth G. Williams,

Algal biology and biofuel production

Abstract. Carbon dioxide is known to overcome sporophytic self‐incompatibility in Brassica. Elevated CO 2 (30 mmol CO 2 mol ‐1 air), supplied via a flowthrough gas system, was shown to block the formation of rejection callose in the surface stigmatic papillae of Brassica campestris var. T15 following self‐pollination. Possible mechanisms by which CO 2 may affect callose formation are discussed.