Symbiosis
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Isolation and characterization of non-Frankia actinobacteria from root nodules of Alnus glutinosa, Casuarina glauca and Elaeagnus angustifolia
Symbiosis - Tập 50 - Trang 51-57 - 2009
Actinobacterial isolates randomly obtained on nitrogen-free BAP medium from surface sterilized root nodules of Alnus glutinosa, Casuarina glauca and Elaeagnus angustifolia sampled from fields were reported. They were assigned on the basis of partial 16S rRNA sequences to Micromonospora, Nocardia and Streptomyces genera. The isolates have been screened for hydrolytic activities, indole acetic acid ......
Chlorophyll a synthesis by an animal using transferred algal nuclear genes
Symbiosis - Tập 49 - Trang 121-131 - 2010
Chlorophyll synthesis is an ongoing requirement for photosynthesis and a ubiquitous, diagnostic characteristic of plants and algae amongst eukaryotes. However, we have discovered that chlorophyll a (Chla) is synthesized in the symbiotic chloroplasts of the sea slug, Elysia chlorotica, for at least 6 months after the slugs have been deprived of the algal source of the plastids, Vaucheria litorea. I......
Is the trophosome of Ridgeia piscesae monoclonal?
Symbiosis - Tập 74 - Trang 55-65 - 2017
The hydrothermal vent tubeworm Ridgeia piscesae relies on intracellular chemolithoautotrophic symbionts for its nutrition. Yet, little is known about symbiont diversity within and between individual worms. We report several lines of molecular evidence for multiple genotypes of very closely related symbionts within the trophosome of the R. piscesae. We examined the distribution of genotypic variant......
Co-cultures of Oophila amblystomatis between Ambystoma maculatum and Ambystoma gracile hosts show host-symbiont fidelity
Symbiosis - Tập 78 - Trang 73-85 - 2019
A unique symbiosis occurs between embryos of the spotted salamander (Ambystoma maculatum) and a green alga (Oophila amblystomatis). Unlike most vertebrate host-symbiont relationships, which are ectosymbiotic, A. maculatum exhibits both an ecto- and an endo-symbiosis, where some of the green algal cells living inside egg capsules enter embryonic tissues as well as individual salamander cells. Past ......
The diversity, antimicrobial and anticancer activity of endophytic fungi associated with the medicinal plant Stryphnodendron adstringens (Mart.) Coville (Fabaceae) from the Brazilian savannah
Symbiosis - Tập 57 - Trang 95-107 - 2012
The diversity and biological activities of the endophytic fungi associated with the Brazilian medicinal plant Stryphnodendron adstringens were studied. A total of 320 fungal isolates were obtained, and 66 phylotypes comprising 25 genera were identified. The fungal community of S. adstringens displayed high richness, diversity and low dominance indices. The most abundant phylotypes were closely rel......
Persistence of ecto- and ectendomycorrhizal fungi associated with Pinus montezumae in experimental microcosms
Symbiosis - Tập 74 - Trang 67-78 - 2017
Ectomycorrhizal (ECM) and ectendomycorrhizal fungal species associated with Pinus montezumae were recorded in 8 year-old trees established in microcosms and compared with those associated with 2 year-old trees, in order to determine their persistence over the long-term. Mycorrhizal root tips were morphologically and anatomically characterized and sequenced. The extension of extramatrical mycelium ......
Serpulids on living Eocene larger foraminifer Discocyclina
Symbiosis - Tập 76 - Trang 229-242 - 2018
I report the first observation of the symbiotic relationship between a serpulid polychaete and a larger foraminifer, Discocyclina, from the Eocene of the Ebro Basin (NE Spain). Discocyclina tests are the larger and most abundant element of the fossil assemblage in a limestone bed within a fan delta series, and seems to be a preferred substrate by the serpulid larvae to settle. The bioimmuration of......
Ectomycorrhizas of two species of Tuber (clade Puberulum) in the Mexican subtropical cloud forest
Symbiosis - Tập 76 - Trang 1-12 - 2017
Tuber species are hypogeous mycorrhizal symbionts distributed almost worldwide and associated with several tree families. In this study, we recorded the occurrence of two Tuber species (clade Puberulum) in the Acatlán Volcano (Veracruz, Eastern Mexico). They were detected by the means of the internal transcribed spacer (ITS) of nuclear ribosomal DNA sequences obtained from ectomycorrhizal samples ......
Occurrence of endophytic bacteria in Vietnamese Robusta coffee roots and their effects on plant parasitic nematodes
Symbiosis - Tập 80 - Trang 75-84 - 2019
Several plant parasitic nematode genera were identified in the Robusta coffee (Coffea canephora Pierre ex A. Froehn) tree roots and surrounding soil samples from three different coffee groups: coffee planted at 5 years (CYG), 18 years (CBG) and 40 years (COG) in Central Highland, Vietnam. They included Meloidogyne spp., Pratylenchus spp., Apratylenchus spp., Criconemella spp., Xiphinema spp. and R......
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