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Seasonal biodiversity and ecological studies on the epiphytic microalgae communities in polluted and unpolluted aquatic ecosystem at Assiut, Egypt

-616. Al-Saboonchi, A.A. & Al-Manshad, H.N. (2012) Study of Epiphytic Algae on Ceratophyllum demersum L. from Two Stations at Shatt Al- Arab River. Journal of Thi-Qar Science, 3, 57-63. Anderson, M.J., Gorley R.N. & Clarke. K.R. (2008) PERMANOVA+ for PRIMER: guide to software and statistical methods. PRIMER-E, Plymouth. Biolo, S., Algarte, V.M. & Rodrigues, L. (2015) Composition and taxonomic similarity of the periphytic algal community in different natural substrates in a neotropical floodplain, Brazil. African Journal of Plant Science

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Rhizosphere Bacterial Communities of Arundo Donax Grown in Soil Fertilised with Sewage Sludge and Agricultural by-Products

Abstract

Application of sewage sludge to soil is a potentially inexpensive source of nutrition for plants, but may contain undesirable and toxic substances, e.g. heavy metals. Alterations in microbial communities can serve as an environmental indicator of possible soil contamination. We used two molecular fingerprinting methods (Automated Ribosomal Intergenic Spacer Analysis, ARISA and Terminal Restriction Fragment Length Polymorphism, T-RFLP) to study changes in the genetic diversity of bacterial communities in the rhizosphere of Arundo donax L. cultivated in the soil fertilised with additive based on sewage sludge from wastewater treatment plant and agricultural by-products represented by crushed corn hobs and wastes from grain mill industry. The metagenomic DNA extracted from rhizosphere samples were collected in August and November 2014. The amount of mgDNA was statistically higher in samples with additive than in control samples without it in both dates. The Venn diagrams showed that operational taxonomic units which were common to all samples were represented in 32.8% in ARISA and 43.4% in T-RFLP. However, based on Principal component analysis and subsequent PERMANOVA statistical tests did not confirm significant differences in the rhizosphere of control plants and plants grown in the soil supplemented with sewage sludge in dose 5 and 15 t/ha present in the additive.

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Seasonal variability of the composition and structure of parasite communities of red porgy, Pagrus pagrus (Perciformes: Sparidae) off Brazil

References ANDERSON, M.J., GORLEY, R.N. CLARKE, K.R. (2008): PERMANOVA for PRIMER: Guide to statistical methods. PRIMER-E, Plymouth; U.K. 240 pp. ANDERSON, R.C. (2000): Nematode Parasites of Vertebrates: Their development and transmission. 2nd Edition, Walingford, UK, CABI Publishing, 650 pp. ÁVILA-DA-SILVA, A.O., HAIMOVICI, H. (2004): Diversidade e associação de espécies nas capturas de espinhel-de-fundo. In: HAIMOVICI H., ÁVILA-DA-SILVA A.O., ROSSI-WONGTSCHOWSKI, L.D.B. (Eds) Prospecção Pesqueira de Espécies

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Do benthic diatom assemblages reflect abiotic typology: a case study of Croatian streams and rivers

and assignments. Acta Botanica Hungarica 3-4, 211-223. Anderson, M. J., Gorley, R. N., Clarke, K. R., 2008: PERMANOVA for PRIMER: Guide to software and statistical methods. PRIMER-E Ltd., Plymouth. APHA, 1995: Standard methods, 19th edition. American Public Health Association, Washington, DC. B-Béres, V., Lukács, Á., Török, P., Kókai, Z., Novák, Z., T-Krasznai, E., Tóthmérész, B., Bácsi, I., 2016: Combined eco-morphological functional groups are reliable indicators of colonisation processes of benthic diatom

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