Stomatal protection against hydraulic failure: a comparison of coexisting ferns and angiosperms
نویسندگان
چکیده
منابع مشابه
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* The hydraulic plumbing of vascular plant leaves varies considerably between major plant groups both in the spatial organization of veins, as well as their anatomical structure. * Five conifers, three ferns and 12 angiosperm trees were selected from tropical and temperate forests to investigate whether the profound differences in foliar morphology of these groups lead to correspondingly profou...
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Ferns are less dependent on passive dilution by cell expansion to coordinate leaf vein and stomatal spacing than angiosperms
Producing leaves with closely spaced veins is a key innovation linked to high rates of photosynthesis in angiosperms. A close geometric link between veins and stomata in angiosperms ensures that investment in enhanced venous water transport provides the strongest net carbon return to the plant. This link is underpinned by "passive dilution" via expansion of surrounding cells. However, it is not...
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ژورنال
عنوان ژورنال: New Phytologist
سال: 2004
ISSN: 0028-646X,1469-8137
DOI: 10.1111/j.1469-8137.2004.01060.x