Sergio Ruiz-Halpern*, Raquel Vaquer-Sunyer and Carlos M. Duarte 1 Centre for Coastal Biogeochemistry, School of Environment, Science and Engineering, Southern Cross University, Lismore, NSW, Australia 2 Department of Global Change, Institut Mediterrani d’Estudis Avançats, Consejo Superior de Investigaciones Científicas, Universitat de les Illes Balears, Esporles, Spain 3 Interdisciplinary Ecolo...

NADP-dependent glutamate dehydrogenase was partially purified from extracts of the marine siphonous green alga Caulerpa simpliciuscula. The enzyme had an apparent Km NH(4) (+) of 0.4 to 0.7 mm and was highly specific for NADPH, alpha-ketoglutarate, and ammonium ions.The bulk of the NADP-glutamate dehydrogenase was isolated with the chloroplast fraction in cell-free preparations of this alga and...

Effect of Seaweed Liquid Extract (SLE) of Caulerpa scalpelliformis on growth and biochemical constituents of Vigna mungo was studied. The lower concentration of SLE of C. scalpelliformis (25%) enhanced the percentage of germination, shoot length, root length and biochemical constituents viz., chlorophyll, carotenoid, amino acid, reducing sugar and total sugar contents and α-amylase and β-amylas...

Many abundant plants, invertebrates, and seaweed are clonal, and this allows the formation of high-density aggregations, foraging, and the placement of modules into new space, and rapid rates of expansion. For these species, population density and rates of expansion are functions of recruitment of asexual modules and post-recruitment vegetative growth and survivorship. In this study, we provide...

Convergent morphologies have arisen in plants multiple times. In non-vascular and vascular land plants, convergent morphology in the form of roots, stems, and leaves arose. The morphology of some green algae includes an anchoring holdfast, stipe, and leaf-like fronds. Such morphology occurs in the absence of multicellularity in the siphonous algae, which are single cells. Morphogenesis is separ...

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Grass Hills ecosystem lies in Anaimalais. The western ghats possesses rich biodiversity, The annual summer fire, an integral part of this ecosystem, promotes the ecological status of certain perennial grasses including the dominant grass. Chrysopogon zeylanicus Thw. On the other hand, some medicinal plants Viz., Impatiens tomentosa Heyne, Drosera peltata Sm Osbeckia parviflora Arn., Emilia sonc...

Apresentamos aqui o levantamento das Apocynaceae de Vitória da Conquista, Bahia, Brasil. São reconhecidos 18 gêneros e 26 espécies nativas, incluindo 11 ocorrências novas para município: Asclepias curassavica, Aspidosperma polyneuron, Blepharodon ampliflorum, Ditassa grandiflora, D. lenheirensis, Himatanthus bracteatus, Ibatia ganglinosa, Macropharynx peltata, Oxypetalum arachnoideum, Petaloste...