Hypocotyl hairs: an historical perspective

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摘要：

The presence of distinctive hypocotyl hairs on young seedlings of some species has been known for some time, although largely ignored. A recent paper (Robinson et al. 2008) suggests that they may be of great ecological significance in the Australian shrub . There is a scattered and little-known literature on this topic going back at least as far as 1904. Here, I provide an overview of that literature. The 21 families and 55 genera of in which hypocotyl hairs have been recorded are tabulated. The life forms involved range from annual herbs to shrubs and trees and the habitats from marine to freshwater wetlands to fully terrestrial habitats, including those in semiarid areas. The functions attributed to hypocotyl hairs include anchoring seedlings to the substrate, facilitating the development of and until the develop.

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关键词：

hypocotyls, Melaleuca ericifolia, annuals, habitats, semiarid zones, shrubs, plant ecology, trichomes, flowering, history, root hairs, trees, growth habit, wetlands, plants, Melaleuca, species differences, tropisms, water uptake, seedlings

DOI：

10.1071/BT08224

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年份：

2009