A5071381385- Marine Biology and Ecology Research
- Plant Pathogenic Bacteria Studies
- Aquatic Invertebrate Ecology and Behavior
- Marine Bivalve and Aquaculture Studies
- Microbial Community Ecology and Physiology
- Legume Nitrogen Fixing Symbiosis
- Plant-Microbe Interactions and Immunity
- Plant pathogens and resistance mechanisms
- Mollusks and Parasites Studies
- Marine and coastal ecosystems
- melanin and skin pigmentation
- Environmental DNA in Biodiversity Studies
- Marine and fisheries research
- Marine and coastal plant biology
- Protist diversity and phylogeny
- Neurobiology and Insect Physiology Research
- Coral and Marine Ecosystems Studies
- Paleontology and Stratigraphy of Fossils
- Photosynthetic Processes and Mechanisms
- Cephalopods and Marine Biology
- Calcium Carbonate Crystallization and Inhibition
- Plant Pathogens and Fungal Diseases
- Amphibian and Reptile Biology
- Marine and environmental studies
- Isotope Analysis in Ecology
UK Centre for Ecology & Hydrology
2022-2025
Natural History Museum
2013-2024
Institute of Cancer Research
2024
California State Polytechnic University
2023
University of Salford
2017-2022
University of Westminster
2013-2022
University of Sussex
2022
University of Bradford
2021
University of York
2017-2018
Marine Biological Association of the United Kingdom
2013-2018
The fundamentally diverse vertebrate pigment cells, melanophores, xanthophores, and iridophores, contain pigmentary organelles known, respectively, as melanosomes, pterinosomes, reflecting platelets. Their pigments are melanins, pteridines, purines. Mosaic cells containing more than one type of organelle have been observed mosaic discovered. It is proposed that the various derived from a stem cell contains primordial endoplasmic reticular origin. This can differentiate into any known organelles.
Pieces of shell from 19 species molluscs exhibiting various microstructures were tested for tensile strength, modulus elasticity in bending and rupture. In strength most shells with cross‐foliated, foliated, homogeneous crossed‐lamellar structures did not exceed 60 MNm 2 but prismatic nacreous often exceeded this value. Nacreous structure was generally superior to all others rupture tests; that Turbo being about equal bone. Values more uniform between structures. There is a general relation...
To re-evaluate the relationships of major bivalve lineages, we amassed detailed morpho-anatomical, ultrastructural and molecular sequence data for a targeted selection exemplar bivalves spanning phylogenetic diversity class. We included 103 species (up to five markers) also analysed subset taxa with four additional nuclear protein-encoding genes. Novel as well historically employed morphological characters were explored, systematically disassembled widely used descriptors such gill stomach...
The 154-kb plasmid was cured from race 7 strain 1449B of the phytopathogen Pseudomonas syringae pv. phaseolicola ( Pph ). Cured strains lost virulence toward bean, causing hypersensitive reaction in previously susceptible cultivars. Restoration achieved by complementation with cosmid clones spanning a 30-kb region that contained identified avirulence avr ) genes avrD , avrPphC and avrPphF . Single transposon insertions at multiple sites (including one located abolished restoration genomic...
Summary Bivalves lay down two forms of calcium carbonate in their shells, aragonite and calcite. Shells may be wholly aragonitic, or contain both calcite, separate monomineralic layers. are built up several layers distinct aggregations crystals. These referred to as shell structures general features described. Aragonite occurs prismatic, nacreous, crossed‐lamellar, complex crossed‐lamellar homogeneous structures. Calcite prismatic foliated Myostracal (calcium laid below sites muscle...
Bivalves are an ancient and ubiquitous group of aquatic invertebrates with estimated 10 000-20 000 living species. They economically significant as a human food source, ecologically important given their biomass effects on communities. Their phylogenetic relationships have been studied for decades, unparalleled fossil record extends from the Cambrian to Recent. Nevertheless, robustly supported phylogeny deepest nodes, needed fully exploit bivalves model testing macroevolutionary theories, is...
Abstract The mechanisms regulating community composition and local dominance of trees in species-rich forests are poorly resolved, but the importance interactions with soil microbes is increasingly acknowledged. Here, we show that tree seedlings interact via root-associated fungal hyphae soils beneath neighbouring adult grow faster have greater survival than isolated from external mycelia, these effects observed for species possessing ectomycorrhizas (ECM) not arbuscular mycorrhizal (AM)...
Abstract Partitioning of soil phosphorus (P) pools has been proposed as a key mechanism maintaining plant diversity, but experimental support is lacking. Here, we provided different chemical forms P to 15 tree species with contrasting root symbiotic relationships investigate acquisition in both tropical and subtropical forests. Both ectomycorrhizal ( ECM ) arbuscular mycorrhizal AM trees responded positively addition inorganic P, strikingly, acquired more from complex organic form (phytic...
Abstract Marine plastic pollution has a range of negative impacts for biota and the colonization plastics in marine environment by microorganisms may have significant ecological impacts. However, data on epiplastic organisms, particularly fungi, is still lacking many ocean regions. To evaluate associated fungi their geographic distribution, we characterised sampled from surface waters western South Atlantic (WSA) Antarctic Peninsula (AP), using DNA metabarcoding three molecular markers...
Abstract Background Salt marshes are major natural repositories of sequestered organic carbon with high burial rates matter, produced by highly productive native flora. Accumulated predominantly exists as lignocellulose which is metabolised communities functionally diverse microbes. However, the organisms that orchestrate this process and enzymatic mechanisms employed regulate accumulation, composition permanence stock not yet known. We applied meta-exo-proteome proteomics 16S rRNA gene...
One hundred sixty-four isolates of Xanthomonas campestris pv. and other X. pathovars known to infect cruciferous hosts (X. pvs. aberrans, raphani, armoraciae, incanae) were inoculated onto a differential series Brassica spp. determine both pathogenicity brassicas race. Of these, 144 identified as grouped into six races, with races 1 (62%) 4 (32%) being predominant. Other rare. The remaining 20 from either nonpathogenic or very weakly pathogenic on the could not be race-typed. Five these...
We showed that a bacterial avirulence (avr) gene function, avrPpiA1, from the pea pathogen Pseudomonas syringae pv pisi, is recognized by some, but not all, genotypes of Arabidopsis. Thus, an avr functionally defined on crop species also The activity avrPpiA1 series Arabidopsis identical to avrRpm1 P.s. maculicola previously using two genes are homologous and encode nearly predicted products. Moreover, this conserved function some bean cultivars in what has been shown be gene-for-gene...
A new molecular phylogeny is presented for the highly diverse, bivalve molluscan subclass Heterodonta. The study, most comprehensive heterodonts to date, used sequences of 18S and 28S rRNA genes 103 species from 49 family groups with Palaeoheterodonta (Trigoniidae, Margaritiferidae Unionidae) as outgroups. Results confirm previous analyses that Carditidae/Astartidae/Crassatellidae clade basal all other including Anomalodesmata (often classified a separate or order). Thyasiroidea occupy near...
Abstract All Lucinidae species studied so far possess sulphide-oxidizing, chemosymbiotic bacteria housed in bacteriocytes of gill filaments. The ecology, functional anatomy and evolution the must be considered relation to this symbiosis. ctenidia have been extensively but other anatomical structures peculiar lucinids received much less attention. Reviewed are morphological diversity living lucinids, highlighting features their including ctenidia, pallial apertures, anterior adductor mucsle,...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEcoRV restriction endonuclease binds all DNA sequences with equal affinityJohn D. Taylor, Ian G. Badcoe, Anthony R. Clarke, and Stephen E. HalfordCite this: Biochemistry 1991, 30, 36, 8743–8753Publication Date (Print):September 1, 1991Publication History Published online1 May 2002Published inissue 1 September 1991https://pubs.acs.org/doi/10.1021/bi00100a005https://doi.org/10.1021/bi00100a005research-articleACS PublicationsRequest reuse...