the tomato fruit borer, helicoverpa armigera (hã¼bner), is a destructive insect pest of many host crops in iran and worldwide. the effect of different tomato cultivars (sun 6108 f1, rio grande ug, korral, ch falat, hed rio grande and cal jn3) was studied on life table parameters of h. armigera under laboratory (25 â± 1 â°c, 65 â± 5% rh and a photoperiod of 16: 8 (l: d) hours), and on the activi...

      Screening and identification of moderately halophilic protease producing bacteria from different regions of Maharloo, a hypersaline lake in the southern area of Iran, were the objectives of this study. In the preliminary screening, 16 isolates exhibited proteolytic activity on saline skim milk agar. All isolates were able to grow comfortably in the media containing 7-15% of salt. Protease...

Abstract The viscera and other residues from fish processing are commonly discarded by the fishing industry. These by-products can be a source of digestive enzymes with industrial biotechnological potential. In this study, we aimed at extraction, characterization, application acidic proteases stomach Carangoides bartholomaei (Cuvier, 1833). A crude extract stomachs was obtained submitted to par...

abstract because of relation between digestive enzyme activity and feeding of insects that directly is in relation with the damage of insects; studying digestive enzyme systems is important in finding new control methods based on inhibiting digestive enzyme activity. recently using transgenic plants containing enzyme inhibitors is important in improving resistance of crops to pests because of s...

Few reports have been published regarding the investigation on the enzymes of viscera of cuttle-fish, Ommastrephes sloani pacificus. OSHIMA et a11) have pointed out the existence of proteinase and amylase in the viscera, and NARA2) has investigated on the proteolytic enzy mes of the liver and reported the presence of cathepsin like enzymes. The present paper deals with the proteolytic activity ...

Abstract This study was designed to evaluate the bioactivities such as ?-glucosidase activity, ?-galactosidase and growth behavior of Lactobacillus cultures in soy milk medium. Ten were considered this study. L. fermentum (M2) casei (NK9) selected due their better ?-galactosidase, activity medium during fermentation. Further, fermented with M2 showed higher proteolytic (0.67 OD) ACE-inhibitory ...

the snail caucasotachea lencoranea mousson is a pest of citrus in the north provinces of iran. in order to adopt a better control of the pest and develop optimal management strategies, an understanding of the digestive enzymes’ function is inevitable. snails were collected from some citrus orchards in the northern provinces of the country and digestive carbohydrases including ?-glucosidase, ?-g...

Bacteria capable of producing different extracellular enzymes of potential relevance in digestive processes were isolated from the stomach, hepatopancreas and intestine of Pacific white shrimp Litopenaeus vannamei. A total of 64 strains with proteolytic activity were isolated and grouped into 16 clusters based on morphological characteristics: 4 groups were isolated from the intestine; 5 from t...

Feeding bioassay results established that the soybean cysteine proteinase inhibitor N (soyacystatin N, scN) substantially inhibits growth and development of western corn rootworm (WCR), by attenuating digestive proteolysis [Zhao, Y. et al. (1996) Plant Physiol. 111, 1299-1306]. Recombinant scN was more inhibitory than the potent and broad specificity cysteine proteinase inhibitor E-64. WCR dige...