Understanding the mechanisms of species coexistence is key to predicting patterns of species diversity. Historically, the ecological paradigm has been that species coexist by partitioning resources: as a species increases in abundance, self-limitation kicks in, because species-specific resources decline. However, determining coexistence mechanisms has been a particular puzzle for sedentary orga...

In the summer of 2000, we released genetically altered insect-pathogenic fungi onto a plot of cabbages at a field site on the Upper Marlboro Research Station, Md. The transformed derivatives of Metarhizium anisopliae ARSEF 1080, designated GPMa and GMa, carried the Aequorea victoria green fluorescent protein (gfp) gene alone (GMa) or with additional protease genes (Pr1) (GPMa). The study (i) co...

In the present study, six arsenic-resistant strains previously isolated were tested for their plant growth promoting characteristics and heavy metal resistance, in order to choose one model strain as an inoculum for sunflower plants in pot experiments. The aim was to investigate the effect of arsenic-resistant strain on sunflower growth and on arsenic uptake from arsenic contaminated soil. Base...

Rhizoctonia solani is one of the most important limiting factors for potato production and storage in Belgium and worldwide. Its management is still strongly dependent on chemical treatments. The aim of this work was to evaluate the possibility of exploiting bacteria and fungi in order to control this pathogen. Among a collection of 220 bacterial strains isolated from different organs of health...

Application of rhizospheric fungi is an effective and environmentally friendly method of improving plant growth and controlling many plant diseases. The current study was aimed to identify phytohormone-producing fungi from soil, to understand their roles in sesame plant growth, and to control Fusarium disease. Three predominant fungi (PNF1, PNF2, and PNF3) isolated from the rhizospheric soil of...

Exploiting the innate hydrolytic enzyme/s potential of the genus Bacillus for costeffective production of PHAs, using various agro-industrial wastes will contribute to cost reduction and elimination of pre-treatment protocols. PHA producing Bacillus spp. from different rhizospheric soils capable of producing a variety of hydrolytic enzymes were isolated. Two promising isolates: Ti1 and Ti3, fro...

Altitude significantly affects vegetation growth and distribution, including the developmental stages of a forest. We used shotgun Illumina sequencing to analyze microbial community composition and functional potential in melojo-oak (Quercus pyrenaica Willd.) rhizospheric soil for three different development stages along an altitudinal gradient: (a) a low altitude, non-optimal site for forest m...

In disease-suppressive soils, plants are protected from infections by specific root pathogens due to the antagonistic activities of soil and rhizosphere microorganisms. For most disease-suppressive soils, however, the microorganisms and mechanisms involved in pathogen control are largely unknown. Our recent studies identified Actinobacteria as the most dynamic phylum in a soil suppressive to th...

Karayolu, günümüzde insanların ve eşyaların konforlu, verimli güvenli bir şekilde taşınmasında en çok tercih edilen ulaştırma sistemlerinden biridir. Bu nedenle trafik güvenliğinin sağlanmaması durumunda yaşanması muhtemel kazaları, bireyler, toplumlar devletler açısından maddi manevi önemli kayıplara neden olmaktadır. Karayolu güvenliği; insan, araç çevrenin etkileşimi sonucunda ortaya çıkması...

Although winter cover crops (WCCs) have demonstrated positive effects on soil properties, relatively little is known about the responses of and plant microbiomes to introduction WCCs their associated management. Our objective was evaluate WCC suppression methods rhizosphere microbiome oats under field conditions. Rhizospheric extracted quantify abundances amoA gene ammonia-oxidizing bacteria ar...