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The effects of methyl jasmonate on sunflower helianthus annuus l. seed germination and seedling development

The effects of methyl jasmonate on sunflower helianthus annuus l. seed germination and seedling development

Plant Growth Regulation 7(3): 157-170

Some effect of methyl jasmonate (Me-Ja) on sunflower (Helianthus annuus L.) seed germination and seedling development are described and compared with those of ABA. Both growth regulators have very similar action. They inhibit germination, but high concentrations of O2 in the atmosphere suppress this inhibitory action. Depending on the concentration, Me-Ja inhibits root and hypocotyl growth, however the root is more sensitive to Me-Ja than to ABA. Me-Ja also strongly reduces oxygen uptake during germination and inhibits chlorophyll biosynthesis in isolated cotyledons.

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Accession: 007896381

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DOI: 10.1007/bf00028238

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