0000600404

Материал из Антэкология /// Anthecology
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Flower Colour Changes in Lantana camara
Journal of Experimental Botany, . Т. 35. 11. С. 16561662 (7).
Lantana camara flowers undergo colour change subsequent to anthesis. In the colour variant selected for the present study, pink buds, yellow newly-opened flowers and ageing orange, scarlet and magenta flowers are found in the same inflorescence. The flower pigments were chemically analysed and identified as delphinidin monoglucoside and β-carotene. Thrips are regular pollinators of Lantana under Delhi conditions. Pollination was identified as the trigger for rapid anthocyanin synthesis. Even the presence of one pollen grain on the stigma of a yellow flower was sufficient to cause colour change. Injection of a suspension of pollen into flowers opened in vitro caused pigment changes. An extract of Lantana pollen was also able to simulate the effect of pollination, suggesting the involvement of a pollen factor. The post-pollination shift in petal colouration is caused by the masking of carotenoids by differential amounts of anthocyanin. As thrips are attracted to only yellow flowers, chromatic changes play a role in conserving pollinator energy.
ТЕМАТИЧЕСКИЕ СПИСКИ
Ключевые словаAnthecology, Floral pigments, Опыление
Таксоны растенийLantana camara, Lantana
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1 0 0.1 98.59% 24
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1 0 0.36 91.72% 122
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0 0 0 98.89% 349
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0 0 0 98.22% 963
Число цитирований на Peer Review Sites PAMPRSC 0 0 0 100% 173
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0 0 0 99.85% 1211
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0 0 0 99.93% 1211


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