Unlocking a high bacterial diversity in the coralloid root microbiome from the cycad genus Dioon. [PDF]
PLoS ONE, 2019 Cycads are among the few plants that have developed specialized roots to host nitrogen-fixing bacteria. We describe the bacterial diversity of the coralloid roots from seven Dioon species and their surrounding rhizosphere and soil.
Pablo de Jesús Suárez-Moo +4 more
doaj +7 more sources
Generation and characterization of expressed sequence tags (ESTs) from coralloid root cDNA library of Cycas debaoensis [PDF]
Plant Diversity, 2018 A normalized full-length cDNA library was constructed from the coralloid roots of Cycas debaoensis by the DSN (duplex-specific nuclease) normalization method combined with the SMART (Switching Mechanism At 5′ end of the RNA Transcript) technique.
Yunhua Wang +3 more
doaj +7 more sources
Core Endophytic Bacteria and Their Roles in the Coralloid Roots of Cultivated Cycas revoluta (Cycadaceae) [PDF]
Microorganisms, 2023 As a gymnosperm group, cycads are known for their ancient origin and specialized coralloid root, which can be used as an ideal system to explore the interaction between host and associated microorganisms. Previous studies have revealed that some nitrogen-
Jiating Liu +4 more
doaj +5 more sources
Perspectives on Endosymbiosis in Coralloid Roots: Association of Cycads and Cyanobacteria [PDF]
Frontiers in Microbiology, 2019 Past endosymbiotic events allowed photosynthetic organisms to flourish and evolve in terrestrial areas. The precursor of chloroplasts was an ancient photosynthetic cyanobacterium.
Aimee Caye G. Chang +5 more
doaj +6 more sources
Core Microbiome and Microbial Community Structure in Coralloid Roots of Cycas in Ex Situ Collection of Kunming Botanical Garden in China [PDF]
Microorganisms, 2023 Endophytes are essential in plant succession and evolution, and essential for stress resistance. Coralloid root is a unique root structure found in cycads that has played a role in resisting adverse environments, yet the core taxa and microbial community
Zhaochun Wang +5 more
doaj +5 more sources
Specialized bacteriome uncovered in the coralloid roots of the epiphytic gymnosperm, Zamia pseudoparasitica [PDF]
Environmental DNA, 2020 Epiphytes face several constraints regarding nutrient acquisition: They are disconnected from soil minerals and they have to mainly rely on nutrients leached by precipitation and microbes.
Philip Bell‐Doyon +3 more
doaj +2 more sources
Developmental Anatomy of Coralloid Roots in Cycads [PDF]
American Journal of Botany, 1975 Coralloid roots of cycads were found to originate endogenously from the pericycle of apogeotropic secondary roots or adventitious roots that have become exposed or nearly exposed to the soil surface. All mature coralloid roots are susceptible to infection by algal endophytes, which seem to enter from the soil through a break in the dermal layers.In the
Boon-Earn Milindasuta
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On the Phycobionts of the Cycad Coralloid Roots [PDF]
New Phytologist, 1980 SummaryThe structure, ultrastructure and the developmental cycle of the phycobionts living in the coralloid roots of various cycads growing in different Italian Botanical Gardens were studied. The phycobionts were examined in the various zones of the coralloids from the top towards the base. All the phycobionts observed have the characteristics typical
Maria Grilli Caiola
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High Cyanobacterial Diversity in Coralloid Roots of Cycads Revealed by PCR Fingerprinting. [PDF]
FEMS Microbiology Ecology, 2002 The genetic diversity of symbiotic cyanobacteria in coralloid roots of cycads was examined using PCR fingerprinting with primers derived from repetitive sequences. The highest genetic resolution was achieved using the primer corresponding to the short tandemly repeated repetitive sequences. The cyanobacteria were collected from the coralloid roots of a
Birgitta Bergman
exaly +4 more sources
SEM Observations on Cyanobacteria-Infected Cycad Coralloid Roots
South African Journal of Botany, 1988 In Nostoc-infected coralloid roots of the cycads Encephalartos transvenosus Stapf & Burtt Davy and E. paucidentatus Stapf & Burtt Davy the intercellular cyanobacteria are present in a narrow circular band between the outer and the inner cortex only. When the cyanobacterial density is very great, some intracellular infection is present.
J Coetzee, N Grobbelaar
exaly +3 more sources