Pollination: Self-fertilization strategy in an orchid

@article{Liu2006PollinationSS,
  title={Pollination: Self-fertilization strategy in an orchid},
  author={Ke-wei Liu and Zhong-Jian Liu and Laiqiang Huang and Liqiang Li and Li-jun Chen and Guang-da Tang},
  journal={Nature},
  year={2006},
  volume={441},
  pages={945-946}
}
Mating in flowering plants normally relies on animals, wind, gravity or secretion to convey pollen grains from the male (anther) to the female (stigma) organ. Here we describe a new type of self-pollination mechanism in the tree-living orchid Holcoglossum amesianum, in which the bisexual flower turns its anther against gravity through 360° in order to insert pollen into its own stigma cavity — without the aid of any pollinating agent or medium. This mode of self-pollination, which occurs under… Expand
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The mode of self-pollination discussed here is a new addition to the broad range of genetic and morphological mechanisms that have evolved in flowering plants to ensure their reproductive success. Expand
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The mode of pollination in Paphiopedilum parishii is a new addition to the broad range of genetic and morphological mechanisms that have evolved in flowering plants to ensure their reproductive success and is a possible adaptation to the insect-scarce habitat of the orchid. Expand
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Ombrophily in the deceptive orchid Acampe rigida is investigated to determine the mechanism by which this species is able to maintain high fecundity, despite flowering during the rainy season in south-west China when pollinators are scarce. Expand
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Evidence is presented for an autonomous self-fertilization mechanism in the winter flowering plant, Brandisia hancei, which seems to be an adaptive strategy to ensure reproduction when pollinators are scarce. Expand
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This delayed self-pollination, which involved the movement of floral parts, the active participation of the wind and sensitive stigma, is quite different from that reported previously and provides reproductive assurance for this species. Expand
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Autogamous seed set in a critically endangered orchid in Japan: pollination studies for the conservation of Nervilia nipponica
  • S. Gale
  • Biology
  • Plant Systematics and Evolution
  • 2007
TLDR
Investigation of the pollination biology of the critically endangered Nervilia nipponica revealed that, in open-pollinated plants, pollen grains germinate within the anther on the first day of anthesis, and that fertilisation occurs within the following 96 hours, suggesting efficient, non-mechanical autopollination. Expand
Autonomous self-pollination in the South African orchid Satyrium rupestre Schltr.
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Evidence of autonomous self-pollination in S. rupestre flowers, scent emission rates and the number of massulae per pollinium are consistent with reduced reliance on animal pollinators, and future studies should focus on the extent to which the species relies on autonomousSelf- pollination for reproduction. Expand
Autonomous self-pollination and insect visitors in partially and fully mycoheterotrophic species of Cymbidium (Orchidaceae)
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A comparative investigation into the breeding system of two fully mycoheterotrophic orchids, Cymbidium macrorhizon and C. lancifolium, finds autogamy would likely be favoured as a reproductive assurance to compensate for pollinator limitation due to their lack of nectar and pollinators’ hostile habitat preferences. Expand
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