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Author Poupin, M.J.; Ledger, T.; Rosello-Mora, R.; Gonzalez, B.
Title The Arabidopsis holobiont: a (re)source of insights to understand the amazing world of plant-microbe interactions Type
Year 2023 Publication Environmental Microbiome Abbreviated Journal Environ. microbiome
Volume 18 Issue 1 Pages 9
Keywords Arabidopsis; Bacteria; Community; Fungi; Microbiota; Plant; Plant-growth-promotion-rhizobacteria; Plant-root-exudates; Rhizosphere
Abstract As holobiont, a plant is intrinsically connected to its microbiomes. However, some characteristics of these microbiomes, such as their taxonomic composition, biological and evolutionary role, and especially the drivers that shape them, are not entirely elucidated. Reports on the microbiota of Arabidopsis thaliana first appeared more than ten years ago. However, there is still a lack of a comprehensive understanding of the vast amount of information that has been generated using this holobiont. The main goal of this review was to perform an in-depth, exhaustive, and systematic analysis of the literature regarding the Arabidopsis-microbiome interaction. A core microbiota was identified as composed of a few bacterial and non-bacterial taxa. The soil (and, to a lesser degree, air) were detected as primary microorganism sources. From the plant perspective, the species, ecotype, circadian cycle, developmental stage, environmental responses, and the exudation of metabolites were crucial factors shaping the plant-microbe interaction. From the microbial perspective, the microbe-microbe interactions, the type of microorganisms belonging to the microbiota (i.e., beneficial or detrimental), and the microbial metabolic responses were also key drivers. The underlying mechanisms are just beginning to be unveiled, but relevant future research needs were identified. Thus, this review provides valuable information and novel analyses that will shed light to deepen our understanding of this plant holobiont and its interaction with the environment.
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Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2524-6372 ISBN Medium
Area Expedition Conference
Notes WOS:000935915900001 Approved
Call Number UAI @ alexi.delcanto @ Serial 1744
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Author Tapia, J.E.; Gonzalez, B.; Goulitquer, S.; Potin, P.; Correa, J.A.
Title Microbiota Influences Morphology and Reproduction of the Brown Alga Ectocarpus sp Type
Year 2016 Publication Frontiers In Microbiology Abbreviated Journal Front. Microbiol.
Volume 7 Issue Pages 14 pp
Keywords microbiota; bacteria-algae interaction; Ectocarpus; bacterial isolate; algal morphology; exometabolome
Abstract Associated microbiota play crucial roles in health and disease of higher organisms. For macroalgae, some associated bacteria exert beneficial effects on nutrition, morphogenesis and growth. However, current knowledge on macroalgae microbiota interactions is mostly based on studies on green and red seaweeds. In this study, we report that when cultured under axenic conditions, the filamentous brown algal model Ectocarpus sp. loses its branched morphology and grows with a small ball like appearance. Nine strains of periphytic bacteria isolated from Ectocarpus sp. unialgal cultures were identified by 16S rRNA sequencing, and assessed for their effect on morphology, reproduction and the metabolites secreted by axenic Ectocarpus sp. Six of these isolates restored morphology and reproduction features of axenic Ectocarpus sp. Bacteria-algae co-culture supernatants, but not the supernatant of the corresponding bacterium growing alone, also recovered morphology and reproduction of the alga. Furthermore, colonization of axenic Ectocarpus sp. with a single bacterial isolate impacted significantly the metabolites released by the alga. These results show that the branched typical morphology and the individuals produced by Ectocarpus sp. are strongly dependent on the presence of bacteria, while the bacterial effect on the algal exometabolome profile reflects the impact of bacteria on the whole physiology of this alga.
Address [Tapia, Javier E.; Correa, Juan A.] Univ Paris 06, CNRS, Biol & Ecol Algae, Stn Biol Roscoff, Roscoff, France, Email: jcorrea@bio.puc.cl
Corporate Author Thesis
Publisher Frontiers Media Sa Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1664-302x ISBN Medium
Area Expedition Conference
Notes WOS:000370760000001 Approved
Call Number UAI @ eduardo.moreno @ Serial 589
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