The oomycete Pythium periplocum is an aggressive mycoparasite of a number of plant pathogenic fungi and oomycetes and therefore has potential as a biological control agent. Here, we report the first draft genome sequence of P. periplocum, which comprises 35.89 Mb. It contains 1,043 scaffolds and 14,399 predicted protein-coding genes.

The authors investigated mycoflora developing on the eggs of three species of the percid fish. At total of 45 aquatic fungi (including 26 as parasites or necrotrophs) were noted. Pythium capillosum is a new record for Poland. The highest number of fungus species developed on eggs of all percids in water from the Biala river, which had the highest content of biogenic compounds.

The ability of the microbial agent Pseudomonas (Ps.) chlororaphis Tx-1 to suppress Pythium aphanidermatum and Pythium dissotocum, and control root rot, was investigated as a function of time of agent application and pathogen inoculation in vegetativestage sweet peppers grown in single-plant hydroponic units. The agent was applied to the nutrient solution at 1 10 CFU/mL and roots were inoculated...

pythium species are cosmopolitan, fungus-like oomycotes which may cause diseases in plants, animals and even human beings. some of the species, however, are saprophytes and also well-proven biological control agents of plant pathogenic fungi. since 1968, when the first pythium species was reported from iran, ca 44 species, two varieties, and five groups of this genus have been reported from dif...

Pythium insidiosum is an oomycete that causes a life-threatening infectious disease called pythiosis in humans and animals living in tropical and subtropical countries. Here, we report the first draft genome sequence of P. insidiosum. The genome of P. insidiosum is 53.2 Mb and contains 14,962 open reading frames.

The chigger mite genus Leptotrombidium Nagayo, Miyagawa, Mitamura and Imamura, 1916 is reviewed using literature data. For 340 larval species brief diagnoses, synonymy, data on type hosts and type localities are provided. The genus is divided into species-groups based on morphological evidence enabling easier establishment of group-membership of un-known specimens in the future. Some species gr...

A strategy combining dual-suppression PCR and thermal asymmetric interlaced PCR was used to determine sequences flanking microsatellite regions in Pythium helicoides. The primer pairs were designed to amplify loci containing (AC)n, (GA)n, (AGC)n, (CAC)n(CAA)n, (TCA)n and (CTTT)n repeats from the P. helicoides nuclear genome. The PCR products of each primer pair, amplified from three representat...

Damping-off, root rot and necrotic lesions were observed on sugar beet (Beta vulgaris) seedlings in the Kafrelsheikh Governorate, northern part of Nile River delta, Egypt. Pythium aphanidermatum was identified as causal agent using morphology asexual sexual morphs molecular studies. This is first record P.

pythium irregulare oomycetes adapts with environmental changes including crude oil concentration by changing the composition of lipids in the cytoplasmic membrane and providing the required characteristics for adaptation in improper and stressful environmental situations. it was found that cultivation of pythium irregulare lx oomycetes in the nutrient media with different concentrations of crud...

Corn yield reduction following a cereal rye cover crop has been attributed to, among other factors, allelochemicals released from decomposing residue. The allelopathic effect of 6-methoxy-2-benzoxazolinone (MBOA) was evaluated on corn seedling growth, mycelial growth seven pathogenic species Pythium, and root rot seedlings caused by Pythium spp. at 13, 16, 22 to 23°C (room temperature) using pl...