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A novel adaptation facilitates seed establishment under marine turbulent flows.


ABSTRACT: Seeds of Australian species of the seagrass genus Posidonia are covered by a membranous wing that we hypothesize plays a fundamental role in seed establishment in sandy, wave swept marine environments. Dimensions of the seed and membrane were quantified under electron microscopy and micro-CT scans, and used to model rotational, drag and lift forces. Seeds maintain contact with the seabed in the presence of strong turbulence: the larger the wing, the more stable the seed. Wing surface area increases from P. sinuosa?

SUBMITTER: Kendrick GA 

PROVIDER: S-EPMC6928165 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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A novel adaptation facilitates seed establishment under marine turbulent flows.

Kendrick Gary A GA   Pomeroy Andrew W AW   Orth Robert J RJ   Cambridge Marion L ML   Shaw Jeremy J   Kotula Lukasz L   Lowe Ryan J RJ  

Scientific reports 20191223 1


Seeds of Australian species of the seagrass genus Posidonia are covered by a membranous wing that we hypothesize plays a fundamental role in seed establishment in sandy, wave swept marine environments. Dimensions of the seed and membrane were quantified under electron microscopy and micro-CT scans, and used to model rotational, drag and lift forces. Seeds maintain contact with the seabed in the presence of strong turbulence: the larger the wing, the more stable the seed. Wing surface area increa  ...[more]

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