Epiphytic diatoms of Thalassia testudinum (Hydrocharitaceae) from the Mexican Caribbean

López-Fuerte, Francisco Omar; Beltrones, David Alfaro Siqueiros; Almeida, Oscar Ubisha Hernández

doi:10.1017/s1755267213000857

Cited by 11 publications

(9 citation statements)

References 6 publications

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“…While, Hein et al (2008) recorded 75 Mastogloia taxa from the Bahamas archipelago. Finally, the closest survey to the present one, carried out in the coast of Quintana Roo, around the continental division between the Gulf of Mexico and the Caribbean Sea, Mexico, yielded 30 Mastogloia species epiphytic on T. testudinum (López-Fuerte et al, 2013), out of which, 19 were not observed in our Campeche samples; whereas 23 taxa from our study were not observed in the Quintana Roo samples. These add to around 106 Mastogloia species and varieties between both localities, sharing approximately 40% of the taxa.…”

Section: Discussionsupporting

confidence: 47%

“…The recent survey by López-Fuerte and Siqueiros-Beltrones (2016) showed that, out of the > 1,100 benthic diatom taxa ever recorded for Mexican waters, 73 Mastogloia species are included. Thus, considering that 30 of these taxa correspond to the Mexican Caribbean (López-Fuerte et al, 2013), only a little over 40 Mastogloia taxa from Mexican non tropical waters are left, mainly from the Mexican northwestern coasts. In summary, according to the present account, plus the latest observations (Hein et al, 2008;Loir & Novarino, 2013;López-Fuerte et al, 2013), it is more likely that Mastogloia species are more diverse and abundantly distributed in tropical and subtropical marine regions as proposed by Frankovich et al (2006) than on a global perspective as suggested by Round et al (1990).…”

Section: Discussionmentioning

confidence: 99%

“…Also, Loir and Novarino (2013) recorded a similar number of species (> 80) for several islands in the Caribbean Sea, which they described and illustrated, while Hein et al (2008) recorded 75 Mastogloia taxa from the Bahamas Archipelago. Moreover, in a previous study on epiphytic diatoms of T. testudinum off the coast of Quintana Roo (Caribbean Sea) López-Fuerte et al (2013) recorded 30 Mastogloia species. These accounts set a reference as to the expected species variety in any given area for the genus Mastogloia, particularly within tropical regions.…”

Section: Introductionmentioning

confidence: 97%

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High species richness of epiphytic Mastogloia (Mastogloiales: Bacillariophyceae) on Thalassia testudinum along the coast of Campeche, southern Gulf of Mexico

2020

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Revista Mexicana de Biodiversidad 91 (2020): e912976 Taxonomy and systematics High species richness of epiphytic Mastogloia (Mastogloiales: Bacillariophyceae) on Thalassia testudinum along the coast of Campeche, southern Gulf of Mexico Alta riqueza de especies de Mastogloia (Mastogloiales: Bacillariophyceae) epifitas de Thalassia testudinum en la costa de Campeche, sur del golfo de México AbstractDiatoms of the genus Mastogloia are naviculoid forms that are generally easy to discriminate due to the presence of marginal chambers known as partecta. They exhibit a wide marine distribution, and are basically benthic forms usually conspicuous in epiphytic and epipelic diatom assemblages. Our objective was to identify species of Mastogloia epiphytic on Thalassia testudinum blades from the southern Gulf of Mexico region. Blades of T. testudinum were collected off the coast of Campeche State, Mexico; the epiphytic diatoms were scrapped off, cleaned and mounted on permanent slides for identification under light microscopy. A total of 76 Mastogloia taxa were recorded. This is the highest number of Mastogloia taxa recorded for Mexican coasts. Seven taxa had not been observed for the region: Mastogloia angusta, M. belaensis, M. depressa, M. ovalis, M. pseudolacrimata, M. regula, and M. urveae. Likewise, 20 Mastogloia species are new records for the Gulf of Mexico, while 15 are new records for Mexican coasts overall. This study confirms that Mastogloia species are mostly distributed in tropical and subtropical habitats, and shows that much floristics and formal taxonomy are required on benthic diatoms from different types of substrata for Mexican littorals.

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Section: Discussionsupporting

confidence: 47%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

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High species richness of epiphytic Mastogloia (Mastogloiales: Bacillariophyceae) on Thalassia testudinum along the coast of Campeche, southern Gulf of Mexico

2020

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“…The Triceratiales include benthic and epontic diatom species, with representatives previously isolated from corals, fossil beds, marine mud, seagrasses, and similar aquatic plants (Crosby and Wood, 1958b). Notably, this order, along with several members of the Bacillariophyceae, have been shown to be major components of the epiphytic diatom community in other seagrass species (López-Fuerte et al, 2013). The Vaucheriales are yellow-green algae that have also been widely observed as epiphytes in salt marshes, seagrass meadows and mangroves (Gallagher and Humm, 1981; Saifullah et al, 2003).…”

Section: Resultsmentioning

confidence: 99%

Regional and Microenvironmental Scale Characterization of the Zostera muelleri Seagrass Microbiome

et al. 2019

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Seagrasses are globally distributed marine plants that represent an extremely valuable component of coastal ecosystems. Like terrestrial plants, seagrass productivity and health are likely to be strongly governed by the structure and function of the seagrass microbiome, which will be distributed across a number of discrete microenvironments within the plant, including the phyllosphere, the endosphere and the rhizosphere, all different in physical and chemical conditions. Here we examined patterns in the composition of the microbiome of the seagrass Zostera muelleri , within six plant-associated microenvironments sampled across four different coastal locations in New South Wales, Australia. Amplicon sequencing approaches were used to characterize the diversity and composition of bacterial, microalgal, and fungal microbiomes and ultimately identify “core microbiome” members that were conserved across sampling microenvironments. Discrete populations of bacteria, microalgae and fungi were observed within specific seagrass microenvironments, including the leaves and roots and rhizomes, with “core” taxa found to persist within these microenvironments across geographically disparate sampling sites. Bacterial, microalgal and fungal community profiles were most strongly governed by intrinsic features of the different seagrass microenvironments, whereby microscale differences in community composition were greater than the differences observed between sampling regions. However, our results showed differing strengths of microbial preferences at the plant scale, since this microenvironmental variability was more pronounced for bacteria than it was for microalgae and fungi, suggesting more specific interactions between the bacterial consortia and the seagrass host, and potentially implying a highly specialized coupling between seagrass and bacterial metabolism and ecology. Due to their persistence within a given seagrass microenvironment, across geographically discrete sampling locations, we propose that the identified “core” microbiome members likely play key roles in seagrass physiology as well as the ecology and biogeochemistry of seagrass habitats.

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“…Diatom identification to the lowest category possible based on frustule morphology was done following both classic literature (Peragallo and Peragallo, 1908;Schmidt et al, 1875) and recent works (Aké-Castillo et al, 2008;López-Fuerte et al, 2013;Siqueiros-Beltrones et al, 2021;Siqueiros-Beltrones et al, 2019;Vidal et al, 2017). To estimate the relative abundances of each taxon three permanent slides were inspected for every sample and the results were added to get a total for each kind of sample at every site, with an average of 1070 valves.…”

Section: Introductionmentioning

confidence: 99%

Benthic diaetm distribution in a tropical coastal lagoon in relation to substrate and its environmental factors

López-Mejía¹

2022

Hidrobiológica

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Epiphytic diatoms of Thalassia testudinum (Hydrocharitaceae) from the Mexican Caribbean

Cited by 11 publications

References 6 publications

High species richness of epiphytic Mastogloia (Mastogloiales: Bacillariophyceae) on Thalassia testudinum along the coast of Campeche, southern Gulf of Mexico

High species richness of epiphytic Mastogloia (Mastogloiales: Bacillariophyceae) on Thalassia testudinum along the coast of Campeche, southern Gulf of Mexico

Regional and Microenvironmental Scale Characterization of the Zostera muelleri Seagrass Microbiome

Benthic diaetm distribution in a tropical coastal lagoon in relation to substrate and its environmental factors

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