The combination method of culture and PCR-DGGE technique is applied for a preliminary study of the diversity of the different contaminated soil. The bacteria DNA of the soil was extracted and used for PCR-DGGE analysis. The results show the plant height, total weight and florescence of two tested plant, inhibited by adding phenol or hexadecane in the soil. There are significant differences between test groups which add contaminants and control group, and no significant differences between test g...
Autori: Hai-Juan Ma, Guang-Ming Li, Ya-Lei Zhang, Ping Fanghttp://www.ecozone.ro/reviste.php?RID=25706

Abstract A one-stage aerobic moving bed biofilm reactor (MBBR) (Reactor A) and a combined reactor (Reactor B) involving an anoxicgravel-bed biofilm reactor (GBBR) and an aerobic MBBR were applied to the treatment of heavily polluted river water. Reactorperformance was investigated throughout the experiment for almost 200 days and molecular techniques including PCR-DGGE,FISH/CLSM and FISH/FCM were used to reveal the evolutions of bacteria community, abundance of nitrifying bacteria and their...
Autori: Linyun Gu, Xiangchun Quan, Yin Qian, Yuansheng Pei, Zhifeng Yang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25942

AbstractExcess biomass produced in the degradation processes of organic pollutants is creating environmental challenges for wastewatertreatment plants. The A+OSA system, a modification of the anoxic / oxic (A/O) process via insertion of a sludge holding tankinto a sludge return line, has been demonstrated to be capable of achieving simultaneous nutrient removal and sludge reduction.Here we report the results of an investigation aimed at evaluating the impact of the sludge holding tank on the bio...
Autori: Li Jia
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26207

The Rural Development Plan (RDP) represent the most important source of contributions and support for the agro-food sector companies in Italy. The European Community planning tool based on a European Structural and Investment Fund (SIE) allows the agricultural and forestry entrepreneurs to undertake projects and investments for the improvement of their companies. During the 2014-2020 RDP program, the Emilia-Romagna region (Italy), promoted a rewarding mechanism to support those companies car...
Autori: Enrico Gerboni
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27404

This work describes the variations in nitrogen (N) and phosphorus (P) removal performances and bacterial population dynamics in response to different influent C/N and C/P ratios in a novel BNR-IC process combining biological nutrients removal (BNR) with induced crystallization (IC). A good nutrients removal performance was achieved at 7.8 of C/N ratio and 23.3 of C/P ratio, where P and TN removal efficiencies were 94.0±2.4% and 90.5±4.3%, respectively. Moreover, significant changes...
Autori: Haiming Zou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27523

Fusarium Head Blight is caused by several Fusarium species. Infections can result in mycotoxin contamination on cereals and associated foods. Harvested products are contaminated due to its secondary metabolites. The aim was to analyse the occurrence of spike Fusarium and Alternaria spp. in hulled Triticum spelta L. wheat species via polymerase chain reaction (PCR) method and the deoxynivalenol (DON) content analysis. Three varieties of spelt were used (Ceralio and Rubiota – winter and one ...
Autori: Karel Suchý
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27562

Bacillus thuringiensis (Bt) is a spore-forming bacterium which produces insecticidal crystal protein in the sporulation phase. Polymerase chain reaction (PCR)-based identification of Bacillus thuringiensis toxin genes has become a routine step in most B. thuringiensis isolation and characterization initiatives. In the present study, eighteen native Bt isolates from diverse habitats of North India were taken for the presence of cry1 type genes. The distribution of cry1 gene families in native ...
Autori: Shiv Shankar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27666

The diversity of fungi colonizing pine and spruce seedlings was analyzed in container and field (bare-root) nurseries in the Region of Warmia and Mazury, Poland. The presence of pathogenic fungi and Oomycetes belonging to the genera Botrytis, Cylindrocarpon, Fusarium, Pestalotia, Phoma, Phytophthora, Pythium and Rhizoctonia was noted in the sampled seedlings. The presence of the pathogenic species C. destructans and species belonging to the genera Fusarium and Phytophthora on the roots and s...
Autori: Adam Okorski
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28036