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 +4 more sources
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 +5 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 +4 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 +4 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 +5 more sources
Chemical ecology of symbioses in cycads, an ancient plant lineage. [PDF]
New PhytolSummary Cycads are an ancient lineage of gymnosperms that maintain a plethora of symbiotic associations from across the tree of life. They have myriad morphological, structural, physiological, chemical, and behavioral adaptations that position them as a unique system to study the evolution, ecology, and mechanism of symbiosis.
Salzman S +6 more
europepmc +2 more sources
Phylometagenomics of cycad coralloid roots reveals shared symbiotic signals. [PDF]
Microb GenomCycads are known to host symbiotic cyanobacteria, including Nostocales species, as well as other sympatric bacterial taxa within their specialized coralloid roots. Yet, it is unknown if these bacteria share a phylogenetic origin and/or common genomic functions that allow them to engage in facultative symbiosis with cycad roots.
Bustos-Diaz ED +6 more
europepmc +5 more sources
Habitat Disturbance Promotes Shifts in the Abundance of Major Fungal Phyla in the Roots of a Native Orchid, <i>Tipularia discolor</i>. [PDF]
Plant Environ InteractABSTRACT Orchids are a widely distributed group of flowering plants with important roles in ecosystems around the globe. However, many species are in decline due, in part, to human‐driven changes in their habitat. It is well established that orchids are reliant on specific groups of mycorrhizal fungi for growth and reproduction and that these fungi can
Watkinson JI.
europepmc +2 more sources
Subterranean morphology underpins the degree of mycoheterotrophy, mycorrhizal associations, and plant vigor in a green orchid Oreorchis patens. [PDF]
Plant JSignificance Statement The evolution of full heterotrophy from photosynthetic ancestors is a longstanding question in evolutionary ecology. Our study demonstrates that coralloid rhizomes in a photosynthetic orchid promote greater mycoheterotrophic carbon acquisition, leading to more vigorous flowering scapes and increased flower production.
Suetsugu K, Okada H.
europepmc +2 more sources
Cycad Coralloid Roots Contain Bacterial Communities Including Cyanobacteria and Caulobacter spp. That Encode Niche-Specific Biosynthetic Gene Clusters. [PDF]
Genome Biol Evol, 2019 AbstractCycads are the only early seed plants that have evolved a specialized root to host endophytic bacteria that fix nitrogen. To provide evolutionary and functional insights into this million-year old symbiosis, we investigate endophytic bacterial sub-communities isolated from coralloid roots of species fromDioon(Zamiaceae) sampled from their ...
Gutiérrez-García K +8 more
europepmc +4 more sources