Draft Genome Sequence of the Nitrogen-Fixing and Hormogonia-Inducing Cyanobacterium Nostoc cycadae Strain WK-1, Isolated from the Coralloid Roots of Cycas revoluta. [PDF]
We report here the whole-genome sequence of Nostoc cycadae strain WK-1, which was isolated from cyanobacterial colonies growing in the coralloid roots of the gymnosperm Cycas revoluta.
Kanesaki Y +8 more
europepmc +2 more sources
Diversity, Phylogeny and Antagonistic Activity of Fungal Endophytes Associated with Endemic Species of Cycas (Cycadales) in China [PDF]
The culture-based approach was used to characterize the fungal endophytes associated with the coralloid roots of the endemic Cycas debaoensis and Cycas fairylakea from various population sites in China.
Melissa H. Pecundo +5 more
doaj +2 more sources
High cyanobacterial diversity in coralloid roots of cycads revealed by PCR fingerprinting. [PDF]
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
Wei-wen Zheng +4 more
semanticscholar +4 more sources
The Coralloid Roots of Macrozamia Communis L. Johnson [PDF]
Macrozamia communis exhibits root dimorphism, possessing both normal and coralloid roots. The latter are pneumatophores in which an algal zone may be present or absent. In the coralloid roots the root cap tissue was interpreted as forming a secondary cortex which persisted throughout the life of the root.
W. Wittmann, F. Bergersen, G. Kennedy
semanticscholar +2 more sources
ON THE PHYCOBIONTS OF THE CYCAD CORALLOID ROOTS [PDF]
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
M. Caiola
semanticscholar +2 more sources
Sequence based data supports a single Nostoc strain in individual coralloid roots of cycads. [PDF]
The genetic diversity of cyanobacteria associated with cycads was examined using the tRNA(Leu) (UAA) intron as a genetic marker. Coralloid roots of both natural populations of the cycad Macrozamia riedlei (Fischer ex Gaudichaud-Beaupré) C.A. Gardner growing in Perth, Australia and cycads growing in greenhouses, also in Perth, were used and their ...
J. Costa, E. M. Romero, P. Lindblad
semanticscholar +8 more sources
DEVELOPMENTAL ANATOMY OF CORALLOID ROOTS IN CYCADS [PDF]
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
semanticscholar +2 more sources
Cyanobiont diversity within coralloid roots of selected cycad species [PDF]
The diversity and host specificity of the cyanobionts of several cycad species (Cycas circinalis L., C. rumphii Miq., Encephalartos lebomboensis I. Verd., E. villosus Lem., and Zamia pumila L.) collected in a botanical garden were examined using the tRNALeu(UAA) intron sequence as a genetic marker.
J. Costa, Per Paulsrud, P. Lindblad
semanticscholar +3 more sources
Nitrogen fixation in the coralloid roots of Macrozamia communis L. Johnson [PDF]
Coralloid roots of Macrozamia communis have been shown by the isotopic method to fix nitrogen when they contain the endophytic blue·green algae. Immature coralloid roots devoid of the endophyte did not fix nitrogen. Coralloid roots from glasshouse-grown plants fixed 2· 7 times as much nitrogen when illuminated than they did in the dark and the IfiN ...
F. Bergersen, G. Kennedy, W. Wittmann
semanticscholar +2 more sources
Full-Length 16S rRNA and ITS Gene Sequencing Revealed Rich Microbial Flora in Roots of Cycas spp. in China. [PDF]
Cycads have developed a complex root system categorized either as normal or coralloid roots. Past literatures revealed that a great diversity of key microbes is associated with these roots.
Pecundo MH +5 more
europepmc +2 more sources

