Occurrence of endophytic bacteria in siphonous algae

Colombo, P. Mariani

doi:10.2216/i0031-8884-17-2-148.1

Cited by 14 publications

(10 citation statements)

References 4 publications

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“…Such host specificity may also apply to bacteria living within algal cells. Despite being described more than 40 years ago (Colombo, 1978) the endophytic communities of siphonous green algae, such as Caulerpa sp. and Bryopsis sp., have only recently been shown to be stable over time (Meusnier et al, 2001;Hollants et al, 2011b) and truly distinct from the epiphytic community of the same alga (Hollants et al, 2011a).…”

Section: Bacterial Communities Associated With Macroalgal Hostswho Ismentioning

confidence: 99%

The seaweed holobiont: understanding seaweed–bacteria interactions

et al. 2013

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Seaweeds (macroalgae) form a diverse and ubiquitous group of photosynthetic organisms that play an essential role in aquatic ecosystems. These ecosystem engineers contribute significantly to global primary production and are the major habitat formers on rocky shores in temperate waters, providing food and shelter for aquatic life. Like other eukaryotic organisms, macroalgae harbor a rich diversity of associated microorganisms with functions related to host health and defense. In particular, epiphytic bacterial communities have been reported as essential for normal morphological development of the algal host, and bacteria with antifouling properties are thought to protect chemically undefended macroalgae from detrimental, secondary colonization by other microscopic and macroscopic epibiota. This tight relationship suggests that macroalgae and epiphytic bacteria interact as a unified functional entity or holobiont, analogous to the previously suggested relationship in corals. Moreover, given that the impact of diseases in marine ecosystems is apparently increasing, understanding the role of bacteria as saprophytes and pathogens in seaweed communities may have important implications for marine management strategies. This review reports on the recent advances in the understanding of macroalgal-bacterial interactions with reference to the diversity and functional role of epiphytic bacteria in maintaining algal health, highlighting the holobiont concept.

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Section: Bacterial Communities Associated With Macroalgal Hostswho Ismentioning

confidence: 99%

The seaweed holobiont: understanding seaweed–bacteria interactions

et al. 2013

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“…GFP-labeled bacteria may simply have detected micro-colonies of bacteria feeding on dead or dying plant cells in the stem cortex. Alternatively, it is tempting to hypothesize a possible role for intracellular bacteria in BNF considering the foliar reported root cortex cells of rice, a non-leguminous plant, contained diazotrophic bacteria and some species of algae have been found to harbor endophytic bacteria near their chloroplasts (Colombo, 1978;Preisig & Hibberd, 1984). While this is a very interesting possibility, it is premature to focus on intracellular BNF in pine without more convincing supporting data.…”

Section: Nitrogen Fixation In Gymnosperms: Effects On Seedling Growthmentioning

confidence: 99%

Nitrogen Fixation Outside and Inside Plant Tissues

Chanway¹,

Anand²,

Yang³

2014

Advances in Biology and Ecology of Nitrogen Fixation

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“…Most studies of algae‐associated bacteria have been culture‐based, and enumeration (plate counts and microscopy) revealed 10 6 –10 8 bacteria g −1 (wet weight) of algal biomass (Chan & McManus, 1969; Lewis et al , 1985; Jensen et al , 1996; Largo et al , 1997). Electron microscopy counts of endophytic bacteria in Udotea petriolata and Halimeda tuna found that the numbers declined with increasing depth from 0.5 to 6 m (Colombo, 1978). Common genera from cultivation studies include Flavobacterium spp.…”

Section: Host‐associated Microorganismsmentioning

confidence: 99%

Microbial ecology of corals, sponges, and algae in mesophotic coral environments

Olson

Kellogg

2010

FEMS Microbiology Ecology

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Mesophotic coral ecosystems that occur at depths from 30 to 200 m have historically been understudied and yet appear to support a diverse biological community. The microbiology of these systems is particularly poorly understood, especially with regard to the communities associated with corals, sponges, and algae. This lack of information is partly due to the problems associated with gaining access to these environments and poor reproducibility across sampling methods. To summarize what is known about the microbiology of these ecosystems and to highlight areas where research is urgently needed, an overview of the current state of knowledge is presented. Emphasis is placed on the characterization of microbial populations, both prokaryotic and eukaryotic, associated with corals, sponges, and algae and the factors that influence microbial community structure. In topic areas where virtually nothing is known from mesophotic environments, the knowledge pertaining to shallow-water ecosystems is summarized to provide a starting point for a discussion on what might be expected in the mesophotic zone.

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Occurrence of endophytic bacteria in siphonous algae

Cited by 14 publications

References 4 publications

The seaweed holobiont: understanding seaweed–bacteria interactions

The seaweed holobiont: understanding seaweed–bacteria interactions

Nitrogen Fixation Outside and Inside Plant Tissues

Microbial ecology of corals, sponges, and algae in mesophotic coral environments

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