Populations of a tropical epiphytic orchid are destabilized in its peripheral range by hurricane and an exotic herbivore

Borrero, Haydee; Oviedo‐Prieto, Ramona; Alvarez, Josefina; Ticktin, Tamara; Cisneros, Mario; Liu, Hong

doi:10.1002/ecs2.4355

Cited by 3 publications

(1 citation statement)

References 93 publications

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“…This represents nearly half of the continental United States' orchid diversity. In addition to the threats of rapid development and habitat loss, orchids are subject to a long history of illegal poaching and human impacts, and as a result, natural populations continue to decline (Borrero Liu et al, 2023). Since 2012, Fairchild Tropical Botanic Garden's "The Million Orchid Project" has been propagating large numbers of Florida native orchids for reintroduction efforts in urban Miami, Florida.…”

Section: Introductionmentioning

confidence: 99%

Comparison of In-Vitro Micropropagation Growth Media Solutions for Prosthechea cochleata (L.) W.E. Higgins vars. diandra and triandra

Bartel,

Downing

2024

Preprint

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Prosthechea cochleata or clamshell orchid is recognized as a species of both conservation and commercial importance. It has long been prized by orchid breeders and growers for its unique flower and hardy disposition. The commercial market has failed to meet the demand for this species since it is still targeted for illegal collection in the wild. This study examines the effectiveness of the banana powder on two variants (var. diandra and var. triandra) with disparate home ranges and levels of genetic diversity using two commercially available agar-based media (PhytoTechnology P668 and P748). Undifferentiated protocorms of the two variants were monitored for shoot growth and differentiation across a period of 156 days. Banana powder supplement (P748) was more effective in initiating shoot formation in both variants compared to control media (P668) (F = 65.11, p < 0.001, df = 81). The diandrous variant grown with banana showed the highest mean shoot count (98.17 shoots/flask) at the end of the monitoring period. Results suggest that banana supplement is an effective source of plant growth regulators and organic nutrients necessary to promote shoot formation and seedling development in this species. This research is important for the conservation of P. cochleata as it identifies an effective and cost-efficient method for micropropagation, which can aid in increasing the wild populations of this species. Additionally, the findings have implications for commercial orchid production, as it can potentially improve the cultivation and yield of this species for economic purposes.

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Section: Introductionmentioning

confidence: 99%

Comparison of In-Vitro Micropropagation Growth Media Solutions for Prosthechea cochleata (L.) W.E. Higgins vars. diandra and triandra

Bartel,

Downing

2024

Preprint

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Comparison of in-vitro orchid media solutions for Prosthechea cochleata (L.) W.E. Higgins vars. diandra and triandra

Bartel,

Downing

2024

Plant Cell Tiss Organ Cult

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Prosthechea cochleata or clamshell orchid is recognized as a species of both conservation and commercial importance. It has long been prized by orchid breeders and growers for its unique flower and hardy disposition. The commercial market has failed to meet the demand for this species since it is still targeted for illegal collection in the wild. This study examines the effectiveness of the banana powder on two variants (var. diandra and var. triandra) with disparate home ranges and levels of genetic diversity using two commercially available agar-based media (PhytoTechnology P668 and P748). Undifferentiated protocorms of the two variants were monitored for shoot growth and differentiation across a period of 156 days. The growth media with 3% banana powder supplement (P748) was more effective in initiating shoot formation in both P. cochleata variants compared to control media (P668) (F = 27.15, p < 0.001, df = 81). The diandrous variant grown with banana showed the highest mean shoot count (28.67 shoots/flask) at the end of the monitoring period. Results suggest that banana supplement is an effective source of plant growth regulators and organic nutrients necessary to promote shoot formation and seedling development in this species. This research is important for the conservation of P. cochleata as it identifies an effective and cost-efficient method for in vitro propagation, which can aid in increasing the ex-situ and in situ populations of this threatened species. Additionally, the findings have implications for commercial orchid production, as it can potentially improve the cultivation and yield of this species for economic purposes.

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Initial Population Analysis and Mycorrhizal Fungi of the Leafless Epiphytic Orchid, Campylocentrum pachyrrhizum, in Florida

Herdman

Mújica²,

Danaher

et al. 2023

Diversity

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Campylocentrum pachyrrhizum Rchb.f. Rolfe, also known as the ribbon orchid, is native to southern Florida, the West Indies, and northern South America. In Florida, it is restricted to the Fakahatchee Strand and is currently state-listed as endangered, but virtually nothing is known about the orchid’s biology, ecology, and current status. The purpose of this study was to document ribbon orchid populations within the northern portion of the Fakahatchee Strand (Florida Panther NWR) and to identify some of the biotic and abiotic factors critical to its survival. During 2016–2022, a total of 118 ribbon orchids were recorded at five sites on 21 host trees comprising two species (Annona glabra, Fraxinus caroliniana). The majority (80%) were rooted on pop ash, and over half (54%) were rooted at the base of trees 100–150 cm above the high water mark. The number of orchids decreased from year to year, with the largest drop (2017–2018) coinciding with damage from Hurricane Irma. At the end of the 2022 survey, only 44 orchids remained. Mycorrhizal fungi isolated from two plants were identified as a Ceratobasidium species. We urge land managers to take immediate action to safeguard this species throughout southern Florida.

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Populations of a tropical epiphytic orchid are destabilized in its peripheral range by hurricane and an exotic herbivore

Cited by 3 publications

References 93 publications

Comparison of In-Vitro Micropropagation Growth Media Solutions for Prosthechea cochleata (L.) W.E. Higgins vars. diandra and triandra

Comparison of In-Vitro Micropropagation Growth Media Solutions for Prosthechea cochleata (L.) W.E. Higgins vars. diandra and triandra

Comparison of in-vitro orchid media solutions for Prosthechea cochleata (L.) W.E. Higgins vars. diandra and triandra

Initial Population Analysis and Mycorrhizal Fungi of the Leafless Epiphytic Orchid, Campylocentrum pachyrrhizum, in Florida

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