Under stationary and anaerobic conditions, greater cell yields of Lactobacillus brevis were obtained from autoclaved than from filter-sterilized glucose media. Fructose, tentatively identified as a product generated by the heating process, served as an excellent catalyst for inducing growth. The addition of micromolar quantities of pentoses or potential pentose precursors to the filter-steriliz...

Differences in the secretion of estrogens by follicular polycystic ovaries of androgen-sterilized rats and by normal follicular ovaries of early proestrous rats were compared. Some rats were injected i.v. with LH 30 min before bleeding. This injection of LH did not influence the secretion of estrogens by normal ovaries, but greatly increased that by polycystic ovaries, suggesting that there was...

The fluctuation of Meloidogyne population density and the percentage of fungal egg parasitism were determined from July 2011 to July 2013 in two commercial organic vegetable production sites (M10.23 and M10.55) in plastic greenhouses, located in northeastern Spain, in order to know the level of soil suppressiveness. Fungal parasites were identified by molecular methods. In parallel, pot tests c...

The use of biological control agents could be a non-chemical alternative for management of Meloidogyne spp. [root-knot nematodes (RKN)], the most damaging plant-parasitic nematodes for horticultural crops worldwide. Pochonia chlamydosporia is a fungal parasite of RKN eggs that can colonize endophytically roots of several cultivated plant species, but in field applications the fungus shows a low...

Background: Tissue engineering has been investigated as a potential method for healing traumatized tissues. Biomaterials are material devices or implants used to repair or replace native body tissues and organs. The present study was conducted to evaluate the effects of decontamination methods on biological/mechanical properties and degradation/adhesion test of the platelet‑-rich fibrin (PRF) m...

Thc sterilizing effect of supercritical carben dioxide (SC-CO,) is described as compared with gaseous C02(G-CO,) and liquid CO,(L-CO,). Baker's yeast, ltscherichia eoli, Staphylococcus aure us and eonidia'ofAspergiilus niger were sterilized by treating with SC-CO, at 200 atm and 350C when the water contcnt of each microorganism was 70 .90%, However, dry cells with a water content of 2 .1O% coul...

The impact of the nematode-parasitic fungus Hirsutella rhossiliensis on the effectiveness of Steinernema carpocapsae, S. glaseri, and Heterorhabditis bacteriophora against Galleria mellonella larvae was assessed in the laboratory. The presence of Hirsutella conidia on the third-stage (J3) cuticle of S. carpocapsae and H. bacteriophora interfered with infection of insect larvae. Conidia on the J...