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Flower traits change in response to infection with ‘Candidatus Phytoplasma mali’ in Nicotiana tabacum as model system

GND
1178372839
Affiliation
Julius Kühn-Institute (JKI), Federal Research Centre for Cultivated Plants, Institute for Plant Protection in Fruit Crops and Viticulture ; Department of Plant Chemical Ecology, Department of Biology, TU Darmstadt, Darmstadt, Germany
Maurer, Doris L.; Dries, Leonie;
Affiliation
Julius Kühn-Institute (JKI), Federal Research Centre for Cultivated Plants, Institute for Plant Protection in Fruit Crops and Viticulture
Müller, Anna-Lena;
Affiliation
Julius Kühn-Institute (JKI), Federal Research Centre for Cultivated Plants, Institute for Plant Protection in Fruit Crops and Viticulture
Jürgens, Andreas;
GND
1059102293
Affiliation
Julius Kühn-Institute (JKI), Federal Research Centre for Cultivated Plants, Institute for Plant Protection in Fruit Crops and Viticulture
Gross, Jürgen;
Affiliation
Julius Kühn-Institute (JKI), Federal Research Centre for Cultivated Plants, Institute for Plant Protection in Fruit Crops and Viticulture
Bischoff, Mascha

Flower traits such as flower colour, shape and volatile bouquet are shaped by a number of different factors, among them theinteractions with pathogens. Infection with the ‘Candidatus Phytoplasma mali’ is associated with apple proliferation diseasein Malus x domestica, a serious threat for commercial apple farming. Apple proliferation induces a range of symptoms on theleaves and a very reduced fruit size. However, the effects of this phytoplasma infection on floral traits are unknown. Thephytoplasma presence was traced in different flower parts of the model system Nicotiana tabacum and changes in the floralreproductive tissue and other floral traits were explored. ‘Ca. P. mali’ was detected in floral tissues and seeds, and the floral traitschanged in response to the infection. If this finding holds for M. domestica, pollinators may be able to discriminate betweenhealthy and infected apple flowers, and their behaviour and thus pollination service may change as a consequence

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