Nectar secretion and pollen production in protandrous flowers of Campanula patula L.(Campanulaceae)

• Autorzy: Denisow B. , Strzalkowska-Abramek M. , Wrzesien M.

Warianty tytułu

PL

Nektarowanie i pylenie protandrycznych kwiatów Campanula patula L.(Campanulaceae)

• Języki publikacji: EN

Abstrakty

EN

Nectar secretion was noted both in the male and female floral phases of the protandrous flowers of Campanula patula (Campanulaceae). Female-biased sugar accumulation was evidenced and plasticity in the duration of sexual phases observed. Flowers in the male phase produced twofold less nectar with lower sugar concentrations compared to female-phase flowers. The sugar mass content averaged 0.6 mg ±0.45 SD per flower in the male phase and 1.4 ±0.5 SD per flower in the female phase. The pollen mass averaged 0.16 mg ±0.10 SD per flower. An understanding of the evolution of functional relationships between floral sexes requires consideration of the compensation of the reproductive costs, including the plastic response to interdependent factors, i.e., photosynthesis and growth, the effect of pollinators, pollen robbers, and external environmental forces.

PL

W protandrycznych kwiatach Campanula patula (Campanulaceae) sekrecja nektaru odbywa się w fazie męskiej i żeńskiej kwiatu. Kwiaty w fazie męskiej produkowały 2-krotnie mniej nektaru, o niższej koncentracji cukrów, niż kwiaty w fazie żeńskiej. Masa wydzielanych cukrów wynosiła średnio 0,6 mg ±0,45 SD w jednym kwiecie w fazie męskiej oraz 1,4 ±0,5 SD w jednym kwiecie w fazie żeńskiej. Zrozumienie relacji pomiędzy fazami płciowymi kwiatów wymaga określenia korzyści i kosztów funkcjonowania fazy męskiej i żeńskiej, np. wpływu potencjału fotosyntetycz-nego, zachowania zapylaczy, strat pyłku, wpływu czynników abiotycznych.

• Wydawca: -
• Czasopismo: Acta Agrobotanica
• Rocznik: 2018
• Tom: 71
• Numer: 1
• Opis fizyczny: Article: 1734 [9 p.], fig.,ref.

Twórcy

autor

Denisow B.

• Department of Botany, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland

autor

Strzalkowska-Abramek M.

• Department of Botany, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland

autor

Wrzesien M.

• Department of Geobotany, Institute of Biology and Biochemistry, Maria Curie-Sklodowska University in Lublin, Akademicka 19, 20-033 Lublin, Poland

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Identyfikatory

DOI

10.5586/aa.1734