Attachment Mechanisms of epiphytic orchid seeds reconsidered

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Standard

Attachment Mechanisms of epiphytic orchid seeds reconsidered. / Rasmussen, Hanne Nina; Rasmussen, Finn N.

I: Rheedea, Bind 31, Nr. 3, 2021, s. 133-140.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Rasmussen, HN & Rasmussen, FN 2021, 'Attachment Mechanisms of epiphytic orchid seeds reconsidered', Rheedea, bind 31, nr. 3, s. 133-140. https://doi.org/10.22244/rheedea.2021.31.03.03

APA

Rasmussen, H. N., & Rasmussen, F. N. (2021). Attachment Mechanisms of epiphytic orchid seeds reconsidered. Rheedea, 31(3), 133-140. https://doi.org/10.22244/rheedea.2021.31.03.03

Vancouver

Rasmussen HN, Rasmussen FN. Attachment Mechanisms of epiphytic orchid seeds reconsidered. Rheedea. 2021;31(3):133-140. https://doi.org/10.22244/rheedea.2021.31.03.03

Author

Rasmussen, Hanne Nina ; Rasmussen, Finn N. / Attachment Mechanisms of epiphytic orchid seeds reconsidered. I: Rheedea. 2021 ; Bind 31, Nr. 3. s. 133-140.

Bibtex

@article{3dabea02cc734a1b8c48aa8811b07d52,
title = "Attachment Mechanisms of epiphytic orchid seeds reconsidered",
abstract = "Orchid seeds generally are “dust” seeds with adaptations towards wind dispersal, and they have many features in common throughout the family. Epiphytism has evolved only within certain subgroups of the Orchidaceae, and it is unclear what seed adaptations favour epiphytism, as compared to the terrestrial lifeform. Seed attachment to bark has attracted very little attention in orchid biology. So far, Chiloschista lunifera (Rchb.f.) J.J.Sm. is the only species reported to have an actual attachment mechanism. In this study, we attempt to confirm old records of seed coat mucilage production in 15 test species, and provide data on seed weights and lengths to test differences according to life form. Uptake of water and seed attachment are likewise compared. Seeds of epiphytic species tended to be shorter than those of terrestrials. In epiphytic species we found cases of very fast germination, within 20 h of exposure to water. Mucilage production could not be demonstrated microscopically. Attachment of dry seeds to a vertical smooth surface was generally high, in both epiphytic and terrestrial species, but in many species attachment was increased by previous water exposure.",
author = "Rasmussen, {Hanne Nina} and Rasmussen, {Finn N.}",
year = "2021",
doi = "10.22244/rheedea.2021.31.03.03",
language = "English",
volume = "31",
pages = "133--140",
journal = "Rheedea",
issn = "0971-2313",
publisher = "Indian Association for Angiosperm Taxonomy",
number = "3",

}

RIS

TY - JOUR

T1 - Attachment Mechanisms of epiphytic orchid seeds reconsidered

AU - Rasmussen, Hanne Nina

AU - Rasmussen, Finn N.

PY - 2021

Y1 - 2021

N2 - Orchid seeds generally are “dust” seeds with adaptations towards wind dispersal, and they have many features in common throughout the family. Epiphytism has evolved only within certain subgroups of the Orchidaceae, and it is unclear what seed adaptations favour epiphytism, as compared to the terrestrial lifeform. Seed attachment to bark has attracted very little attention in orchid biology. So far, Chiloschista lunifera (Rchb.f.) J.J.Sm. is the only species reported to have an actual attachment mechanism. In this study, we attempt to confirm old records of seed coat mucilage production in 15 test species, and provide data on seed weights and lengths to test differences according to life form. Uptake of water and seed attachment are likewise compared. Seeds of epiphytic species tended to be shorter than those of terrestrials. In epiphytic species we found cases of very fast germination, within 20 h of exposure to water. Mucilage production could not be demonstrated microscopically. Attachment of dry seeds to a vertical smooth surface was generally high, in both epiphytic and terrestrial species, but in many species attachment was increased by previous water exposure.

AB - Orchid seeds generally are “dust” seeds with adaptations towards wind dispersal, and they have many features in common throughout the family. Epiphytism has evolved only within certain subgroups of the Orchidaceae, and it is unclear what seed adaptations favour epiphytism, as compared to the terrestrial lifeform. Seed attachment to bark has attracted very little attention in orchid biology. So far, Chiloschista lunifera (Rchb.f.) J.J.Sm. is the only species reported to have an actual attachment mechanism. In this study, we attempt to confirm old records of seed coat mucilage production in 15 test species, and provide data on seed weights and lengths to test differences according to life form. Uptake of water and seed attachment are likewise compared. Seeds of epiphytic species tended to be shorter than those of terrestrials. In epiphytic species we found cases of very fast germination, within 20 h of exposure to water. Mucilage production could not be demonstrated microscopically. Attachment of dry seeds to a vertical smooth surface was generally high, in both epiphytic and terrestrial species, but in many species attachment was increased by previous water exposure.

U2 - 10.22244/rheedea.2021.31.03.03

DO - 10.22244/rheedea.2021.31.03.03

M3 - Journal article

VL - 31

SP - 133

EP - 140

JO - Rheedea

JF - Rheedea

SN - 0971-2313

IS - 3

ER -

ID: 257284624