Results 21 to 30 of about 932,613 (136)

Habitat Disturbance Promotes Shifts in the Abundance of Major Fungal Phyla in the Roots of a Native Orchid, Tipularia discolor [PDF]

open access: yesPlant-Environment Interactions, Volume 6, Issue 6, December 2025.
ABSTRACT 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
Jonathan I. Watkinson
wiley   +2 more sources

Evolution of molecular communication in the permanent Azolla symbiosis [PDF]

open access: yesNew Phytologist, Volume 249, Issue 4, Page 1666-1674, February 2026.
Summary Heritable symbioses exist across eukaryotes with different degrees of intimacy. In most cases, the symbionts are obligate and require inheritance for their survival. On the host side, symbiont retention can facilitate fitness benefits. Only rarely are these symbioses interwoven to the point that host survival relies on the symbiont.
Deren Büyüktaş   +2 more
wiley   +2 more sources

Diversity of symbiotic cyanobacteria in cycad coralloid roots using a short-read rbcL-X amplicon

open access: yesSymbiosis
© 2024. The Author(s), under exclusive licence to Springer Nature B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. This document is Accepted version of a Published Work that appeared in final form in Symbiosis.
Adriel M. Sierra   +3 more
openaire   +3 more sources

Isolation and characterization of 1-palmitoyl-2-linoleoyl-sn-glycerol as a hormogonium-inducing factor (HIF) from the coralloid roots of Cycas revoluta (Cycadaceae) [PDF]

open access: yesScientific Reports, 2019
AbstractCoralloid roots are specialized tissues of cycads (Cycas revoluta) that are involved in symbioses with nitrogen-fixing Nostoc cyanobacteria. We found that a crude methanolic extract of coralloid roots induced differentiation of the filamentous cell aggregates of Nostoc species into motile hormogonia. Hence, the hormogonium-inducing factor (HIF)
Yasuyuki Hashidoko   +5 more
openaire   +4 more sources

The Encephalartos natalensis-cyanobacterial coralloid root partnership for nitrogen acquisition [PDF]

open access: yes, 2022
Dissertation (MSc (Genetics))--University of Pretoria, 2022.Plant-microbe symbioses have important environmental and ecological implications because of the role they played in plant diversification as well as their ongoing impact on nutrient acquisition ...

core   +1 more source

The Coralloid Roots of Macrozamia Communis L. Johnson [PDF]

open access: yesAustralian Journal of Biological Sciences, 1965
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, FJ Bergersen, GS Kennedy
openaire   +1 more source

Cyanobiont diversity within coralloid roots of selected cycad species [PDF]

open access: yesFEMS Microbiology Ecology, 1999
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.
José-Luı́s Costa   +2 more
openaire   +2 more sources

Encephalartos natalensis-cyanobacterial coralloid root partnership for nitrogen acquisition

open access: yes, 2022
This supplementary data consist of the following files: Dataset file 2.1, contains a comprehensive list of candidate plant-symbiosis genes investigated in this dissertation.
Cassandra Schoeman (12957494)   +5 more
core   +1 more source

Specialized bacteriome uncovered in the coralloid roots of the epiphytic gymnosperm, Zamia pseudoparasitica [PDF]

open access: yesEnvironmental DNA, 2020
AbstractEpiphytes 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. The cycad, Zamia pseudoparasitica Yates, is the only known strictly epiphytic gymnosperm, and it is endemic to Panamanian rainforests.
Philip Bell‐Doyon   +3 more
openaire   +2 more sources

Juvenile individual of Dioon edule from the botanical garden.

open access: yes, 2019
The radicular system of the Dioon species consist of a primary root, secondary root, precoralloid root and coralloid root. Also shown is a cross-section of the coralloid root without magnification, highlighting the ‘algal or cyanobacterial zone’.
Francisco Barona-Gómez (2699224)   +4 more
core   +1 more source

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