tropism

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Examine the role of sunlight and gravity in phototropic and geotropic plant growth

Tropism (Top) Phototropism shown in the multiple exposure of a fungus fruiting body; (bottom) geotropism shown in the multiple exposure of oat coleoptiles.

tropism: Related Content

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Photos and Videos

Tropism (Top) Phototropism shown in the multiple exposure of a fungus fruiting body; (bottom) geotropism shown in the multiple exposure of oat coleoptiles.

Examine the role of sunlight and gravity in phototropic and geotropic plant growth

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Topics

plagiotropism phototropism diatropism chemotropism galvanotropism traumatotropism thigmotropism gravitropism hydrotropism orthotropism plant development photosynthesis plant reproductive system plant cell nectar growth ring angiosperm fern bryophyte conifer

Key People

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Julius von Sachs

German botanist

Jacques Loeb

Jacques Loeb

German biologist