Influence of spectral quality of light on pollen tube elongation in Arachis hypogaea

The effect of light of different wave lengths (red RL, blue BL, yellow YL, green GL and far-red FR) on pollen tube elongation has been studied in Arachis hypogaea. Short exposure of pollen to RL caused enhanced tube elongation and this effect was reduced by FR and BL. The effects of RL and FR were m...

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Bibliographic Details
Published in:Annals of botany 1978-09, Vol.42 (181), p.1109-1117
Main Authors: Chhabra, N, Malik, C.P
Format: Article
Language:English
Subjects:
Arachis hypogaea
Dehydrogenases
Enzymes
Germination
Irradiation
light
Memory interference
peanuts
Plant growth regulators
Pollen
pollen tube elongation
Pollen tubes
Spore germination
Visible spectrum
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Summary:The effect of light of different wave lengths (red RL, blue BL, yellow YL, green GL and far-red FR) on pollen tube elongation has been studied in Arachis hypogaea. Short exposure of pollen to RL caused enhanced tube elongation and this effect was reduced by FR and BL. The effects of RL and FR were mutually reversible. Similarly, the inhibitory effect of blue light could be overcome by IAA and riboflavin separately whereas acetylcholine and GA3 mimicked the RL effect. The activities of peroxidase (PO) and malate dehydrogenase (MDH) were increased by RL and IAA whereas BL increased the activity of IAA-oxidase. The regulatory role of light of different spectral composition in controlling pollen tube elongation is discussed.
ISSN:0305-7364
1095-8290
DOI:10.1093/oxfordjournals.aob.a085551