Systemic irradiance signalling in tobacco

作者: Paul W. Thomas , F. Ian Woodward , W. Paul Quick

DOI: 10.1046/J.1469-8137.2003.00954.X

关键词: SolanaceaeNicotiana tabacumBiologyHigh irradianceBotanyIrradianceStomatal densityShadingLeaf sizeNicotiana

摘要: Summary • We report the influence of a systemic irradiance signal, from mature leaves, on anatomical characteristics developing leaves. • A signal reduced was induced by growing tobacco (Nicotiana tabaccum) plants at high and then measuring effect shading leaves development new leaves. The reverse, increased low increasing leaves. • Stomatal pore length, stomatal density index, epidermal cell shape, size leaf were all influenced signal. These responses reversible with changing irradiance, except for length.

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