Mycorrhizal specificity does not limit the distribution of an endangered orchid species

2017 ◽  
Vol 26 (6) ◽  
pp. 1687-1701 ◽  
Author(s):  
Michael Waud ◽  
Rein Brys ◽  
Wouter Van Landuyt ◽  
Bart Lievens ◽  
Hans Jacquemyn
Keyword(s):  
Orchid Species ◽  
Endangered Orchid ◽  
Mycorrhizal Specificity

scholarly journals Proliferation of Protocorm-Like Bodies of Dendrobium mannii and Dendrobium mirbelianum in Chitosan-containing Media In Vitro

2016 ◽  
Vol 2 (3) ◽  
pp. 22-28 ◽  
Author(s):  
Syifaur Rahmah ◽  
Ni Made Armini Wiendi ◽  
Willy B. Suwarno ◽  
Krisantini Krisantini
Keyword(s):  
Adverse Effects ◽  
Fresh Weight ◽  
Orchid Species ◽  
Endangered Orchid ◽  
Micro Propagation ◽  
Rare And Endangered

Dendrobium mannii and Dendrobium mirbelianum were rare and endangered orchid species. In vitro micro propagation could be used to conserve and proliferate these species. The aims of this study were to determine the effects of chitosan on proliferation of the protocorm-like-bodies (PLBs) of in vitro grown Dendrobium mannii and D. mirbelianum. Chitosan has been reported as an important component to promote orchid growth in vitro. In this study chitosan was included in the in-vitro media at the concentrations of 0, 1, 2, 3, and 4 mg.L-1. The highest PLBs formation, clump diameter, and fresh weight on D. mannii were obtained from explants cultured on medium supplemented with 1 mg.L-1 chitosan. After 14 weeks of culture, fresh weight, clump diameter and average number of PLBs of D.mannii were 29.52 %, 33.00 % and 35.88% greater at chitosan (1 mg.L-1) compared to control media.  D. mirbelianum treated with low chitosan concentrations (1 and 2 mg.L-1) had 65.71% more leaves than those without chitosan treatment. Chitosan, however, had an adverse effects on growth of both species at  4 mg.L-1. Medium contain 4 mg.L-1 chitosan induced PLBs proliferation of D.mannii, but inhibited PLBs proliferation of D.mirbelianum.  These results suggested that chitosan had important roles in PLB proliferation and could be used for the propagation of D. mannii PLBs in vitro. Keywords: rare orchid species, in-vitro

Determination of Sites of Special Importance for the Conservation of Threatened Orchid Species in Colombia

2021 ◽  
Vol 42 ◽  
pp. e67589
Author(s):  
Daniela Alba-Patiño ◽  
Fabian Martínez-Hernández ◽  
Juan Francisco Mota Poveda
Keyword(s):  
Natural Resources ◽  
Protected Areas ◽  
Special Importance ◽  
Altitudinal Distribution ◽  
Orchid Species ◽  
Endangered Orchid ◽  
The Andes ◽  
Andes Region ◽  
Selection Of

Colombia is the country with the highest number of orchid species (4270), whose optimal habitat is cold and humid forests. However, the outlook for conservation is alarming, considering that deforestation is causing the loss of millions of hectares of forests. This situation has led to the existence of 206 endangered orchid species. Therefore, this research was conducted to determine Sites of Special Importance for the Conservation of Threatened Orchid Species in Colombia (SSICO), through an analysis of their spatial and altitudinal distribution using various databases, to make a selection of nature reserves on a municipality scale, using Marxan software, and employing relevant parameters (richness, rarity, and IUCN category). Furthermore, the results were later compared with the Protected Areas System, determining their coverage to propose SSICOs. 674 records of the presence of threatened orchids in 277 municipalities were obtained. Urrao, Abrego, and Frontino were the areas with the greatest richness and rarity. Marxan selected 47 municipalities located mostly in the Andes region, and four SSICOs were prioritized, which are located in the Antioquia, Norte de Santander, Nariño and Putumayo provinces. These SSICOs, in addition to being points of great biodiversity, are areas with special socio-economic characteristics that influence the management of natural resources. These areas require timely attention, research, and intervention by environmental authorities because of their importance for conserving orchids and Andes Forests.

scholarly journals Two complete chloroplast genomes of an endangered orchid species, Pelatantheria scolopendrifolia (Orchidaceae), in Korea

2018 ◽  
Vol 3 (1) ◽  
pp. 225-226
Author(s):  
Seon A. Yun ◽  
Hyun-Deok Son ◽  
Hyoung-Tak Im ◽  
Seung-Chul Kim
Keyword(s):  
Orchid Species ◽  
Endangered Orchid ◽  
Chloroplast Genomes

Study on the Pollinator and Pollination Mechanism of an Endangered Orchid Species, Sarcanthus scolopendrifolius Makino (Orchidaceae) in Korea

2017 ◽  
Vol 32 (3) ◽  
pp. 199-203 ◽  
Author(s):  
Hyun-Deok Son ◽  
Hyoung-Tak Im ◽  
Sei-Woong Choi
Keyword(s):  
Orchid Species ◽  
Pollination Mechanism ◽  
Endangered Orchid

scholarly journals Comparative Proteomics Analyses of Pollination Response in Endangered Orchid Species Dendrobium Chrysanthum

2017 ◽  
Vol 18 (12) ◽  
pp. 2496 ◽  
Author(s):  
Wei Wang ◽  
Hongyang Yu ◽  
Tinghai Li ◽  
Lexing Li ◽  
Guoqiang Zhang ◽  
...  
Keyword(s):  
Comparative Proteomics ◽  
Orchid Species ◽  
Endangered Orchid ◽  
Dendrobium Chrysanthum

Planning the priority protected areas of endangered orchid species in northeastern China

2014 ◽  
Vol 23 (6) ◽  
pp. 1395-1409 ◽  
Author(s):  
Jizhong Wan ◽  
Chunjing Wang ◽  
Shijie Han ◽  
Jinghua Yu
Keyword(s):  
Protected Areas ◽  
Northeastern China ◽  
Orchid Species ◽  
Endangered Orchid

scholarly journals Development of species-specific SCAR markers for identification and authentication of three rare Peninsular Malaysian endemic Coelogyne (Orchidaceae) orchids

F1000Research ◽  
2020 ◽  
Vol 9 ◽  
pp. 1161
Author(s):  
Yoh Kok Hon ◽  
Christina Seok-Yien Yong ◽  
Janna Ong Abdullah ◽  
Rusea Go
Keyword(s):  
Scar Marker ◽  
Management Plan ◽  
Peninsular Malaysia ◽  
Single Band ◽  
Scar Markers ◽  
Orchid Species ◽  
Endangered Orchid ◽  
Reproductive Structures ◽  
In The Wild ◽  
Species Specific

Background: Coelogyne kaliana, Coelogyne stenochila and Coelogyne tiomanensis are three valuable rare orchid species endemic to Peninsular Malaysia, currently rampantly traded illegally via the internet and through local nurseries, which label them as hybrids to avoid enforcement detection. Drastic measures to ensure the continued existence of their populations in the wild should be introduced as they are rapidly diminishing into extinction, including the development of rapid and accurate species-specific identification tools. These three orchid species are highly similar morphologically and currently it is impossible to distinguish among them without their reproductive structures. Methods:  RAPD-based species-specific SCAR markers were developed to distinguish and authenticate the identity of these three endemic Peninsular Malaysian Coelogyne species. Results: Three SCAR markers were successfully developed in this study. SCAR marker primer pair, CKL_f / CKL_r was specific to C. kaliana as it produced a unique single band of 271 bp but not in C. stenochila and C. tiomanensis.  SCAR marker primer pair CST_f / CST_r amplified a single band of 854 bp in C. stenochila and two bands of different sizes (372 bp and 858 bp) in C. tiomanensis, but no amplification in C. kaliana. The third SCAR marker primer pair, CTI_f / CTI_r produced a single band (about 500 bp) for both C. stenochila and C. tiomanensis, but showed no amplification in C. kaliana. Conclusions: Although not all these SCAR markers were species amplification specific, they could be used to discriminate among the three Coelogyne species effectively.  Accurate species identification is one of the most important steps to allow a proper management plan to be established in the effort to conserve these three endangered orchid species of Peninsular Malaysia. Besides, it could effectively put a stop to the illegal trading of these rare endangered orchid species worldwide.

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