Review
Plant Sciences
Da-Ke Zhao, Marc-Andre Selosse, Limin Wu, Yan Luo, Shi-Cheng Shao, Yong-Ling Ruan
Summary: The article discusses the endangered status of orchids in the plant kingdom and proposes a new reintroduction method for orchids by co-sowing orchid seeds directly with orchid mycorrhizal fungi carrying ecological specificity. This innovative approach aims to reconstruct long-term and self-sustained orchid populations, representing a potential benefit for the reintroduction of endangered orchids in nature.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Microbiology
Yi-Hua Wu, De-Yun Chen, Xin-Ju Wang, Neng-Qi Li, Jiang-Yun Gao
Summary: The study developed a method using ex situ seedling baiting to capture seedling-associated fungi from Dendrobium officinale. The results suggest that this approach is an easy and efficient way to obtain fungi for this species.
Article
Horticulture
Yanyan Gao, Sijing Peng, Ye Hang, Guofang Xie, Ning Ji, Mingsheng Zhang
Summary: Research has shown that the isolated strain Coprinellus disseminatus DJF-10 from the roots of Cremastra appendiculata can promote seed germination and induce seedling growth, providing new support for orchid seed germination and seedling development.
SCIENTIA HORTICULTURAE
(2022)
Article
Biodiversity Conservation
Jacopo Calevo, Miriam Bazzicalupo, Martino Adamo, Francesco Saverio Robustelli della Cuna, Samuele Voyron, Mariangela Girlanda, Karl J. Duffy, Annalisa Giovannini, Laura Cornara
Summary: Hybridization can lead to the formation of new taxa with traits resembling rare parent species, increasing extinction risk. Hybrid floral traits are more similar to the rare parent species. Shared mycorrhizal fungi indicate establishment is not hindered by fungal availability differences.
Review
Plant Sciences
Taiqiang Li, Shimao Wu, Wenke Yang, Marc-Andre Selosse, Jiangyun Gao
Summary: Orchid distribution and population dynamics are influenced by ecological factors and holobionts, with a strong dependency on orchid mycorrhizal fungi. Changes in OMF composition and abundance can have profound effects on orchid distribution and fitness. Network analysis plays a crucial role in studying interactions between plants, microbes, and the environment.
FRONTIERS IN PLANT SCIENCE
(2021)
Review
Plant Sciences
Marc-Andre Selosse, Remi Petrolli, Maria Isabel Mujica, Liam Laurent, Benoit Perez-Lamarque, Tomas Figura, Amelia Bourceret, Hans Jacquemyn, Taiqiang Li, Jiangyun Gao, Julita Minasiewicz, Florent Martos
Summary: The roots of orchids associate with a variety of soil fungi, including a group called rhizoctonias that is most frequently found. However, there are also orchid species that target other fungal taxa with different phylogenetic positions and ecological traits. This study offers an evolutionary framework for understanding these symbiotic associations.
Article
Horticulture
Yifan Zhang, Wenwen Huo, Jiayi Hou, Lei Liu, Xiaoying Yu, Lu Xu
Summary: This study found that co-culturing with Tulasnella calospora significantly improves the growth and cultivation of Dendrobium officinale, increasing resistance indicators and the content of functional components.
Article
Plant Sciences
Marc W. Freestone, Nigel D. Swarts, Noushka Reiter, Sean Tomlinson, Frances C. Sussmilch, Magali M. Wright, Gareth D. Holmes, Ryan D. Phillips, Celeste C. Linde
Summary: The study investigated the distribution and diversity of Ceratobasidium OMF in orchids and soils across Australia, revealing common cross-continental fungi with ranges exceeding that of their host orchids. This suggests these fungi do not limit their host orchids' distributions at large spatial scales. The majority of OTUs were found in southern Australia, with some extending into central and northern regions, showcasing their tolerance for a wide range of environmental conditions.
Article
Plant Sciences
Yuan-Yuan Li, Margaux Boeraeve, Yu-Hsiu Cho, Hans Jacquemyn, Yung- Lee
Summary: Mycorrhizal associations play a crucial role in orchid germination and seedling establishment, potentially impacting the distribution and abundance of orchids in natural conditions. The mycoheterotrophic orchid Gastrodia confusoides displays random aboveground spatial patterns of distribution within bamboo forests, possibly due to the scattered distribution of litter-decaying fungi. Our study provides evidence that the abundance of litter-decaying fungi varies randomly within the bamboo forest and independently from G. confusoides adults.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Fan Tian, Xiao-Feng Liao, Lian-Hui Wang, Xin-Xiang Bai, Yan-Bin Yang, Zai-Qi Luo, Feng-Xia Yan
Summary: Mycorrhizal fungi play a crucial role in seed germination and seedling development of Paphiopedilum barbigerum, with Epulorhiza sp. FQXY019 showing significant promotion in seed germination and seedling growth. Inoculation with FQXY019 leads to progression from seed germination to rooting stage, with different effects observed in different culture media.
PLANT SIGNALING & BEHAVIOR
(2022)
Article
Agronomy
Chenyang Xue, Yuling Jiang, Yingmei Gao, Bo Qu
Summary: This study compared the specificity and composition of the fungal community in the roots of the greater butterfly-orchid under different precipitation conditions. The results showed that non-mycorrhizal fungi accounted for the majority of the root fungal community. An increase in precipitation was found to promote the growth of non-mycorrhizal fungi and reduce the presence of mycorrhizal fungi. The study emphasized the importance of understanding the relationship between fungal communities and environmental factors in orchid roots for the protection and restoration of orchid populations.
Article
Biochemistry & Molecular Biology
Sophie Mennicken, Helene Vogt-Schilb, Tamara Tesitelova, Milan Kotilinek, Yasmin A. A. Alomia, Bertrand Schatz, Jana Jersakova
Summary: Network analysis is an effective tool to understand the interactions between plants and root-associated fungi. Investigating the structure of these interactions in mycoheterotrophic plants like orchids provides insights into plant community assembly and coexistence. This study used next-generation sequencing to analyze orchid-OMF networks in two European regions with different climates and found that the networks were both nested and modular, with fungal communities varying between co-occurring orchid species. The results suggest that both biotic and abiotic factors play a role in shaping plant-mycorrhizal fungus interactions.
Article
Plant Sciences
Deyi Wang, Krijn B. Trimbos, Sofia I. F. Gomes, Hans Jacquemyn, Vincent S. F. T. Merckx
Summary: This study evaluates the reliability of ITS2 metabarcoding data for quantitative assessments of mycorrhizal communities. The results demonstrate a significant correlation between metabarcoding read counts and ddPCR assays, highlighting the usefulness of metabarcoding for quantifying orchid mycorrhizal fungi abundance.
Article
Horticulture
Qianyu Yang, Lijun Xu, Wei Xia, Lixiong Liang, Xiao Bai, Lubin Li, Lu Xu, Lei Liu
Summary: In this study, orchid seeds were found to establish a relationship with orchid mycorrhizal fungi for germination, with Tulasnella calospora (Tca) showing significant seed germination-promoting effects on Cymbidium mannii and Epidendrum radicans. Different concentrations of oatmeal agar (OA) medium influenced the symbiosis and compatibility of the fungi with the orchids, highlighting the importance of mycorrhizal technology for the propagation and conservation of endangered orchid species.
Article
Microbiology
Andrea Dove, Michael D. Charters, Matthew J. Campbell, Hanna Blake, Manoj Menon, Viswambharan Sarasan
Summary: The yellow early marsh orchid is a critically endangered terrestrial orchid in Britain. Previous attempts to translocate symbiotic seedlings to a site near the last remaining wild site demonstrated some success. However, a more comprehensive understanding of the fungal microbiome and abiotic soil characteristics at the wild site is needed for future conservation translocations.