Sclerotium-forming filamentous fungi are of great agricultural and biological interest because they can be viewed as models simple metamorphosis. They differentiate by asexually producing sclerotia but the processes involved in sclerotial metamorphosis were poorly understood. In 1997, it was shown for first time that differentiation state Sclerotium rolfsii concurred with increasing levels lipid peroxides. This finding prompted development a theory supporting is induced oxidative stress....

The aim of this work was to investigate the effects four different light intensities on growth characteristics, physiological parameters and leaf photosynthetic pigments Salvia officinalis L. plant's dry mass, number leaves indicated a strong positive correlation with intensity. On other hand, height were increased at low treated plants. These results suggest that aromatic herb is adaptable environments.

To evaluate the effect of bombesin (BBS) and neurotensin (NT) on intestinal histopathology, oxidative stress, endotoxemia in experimental obstructive jaundice.Obstructive jaundice compromises gut barrier function, resulting endotoxemia. BBS NT, exerting various biologic actions gastrointestinal tissues, preserve mucosal integrity cases injury or atrophy.Seventy male Wistar rats were randomly divided into 5 groups: I = controls, II sham operated, III bile duct ligation (BDL), IV BDL + (30...

Energy demand of greenhouses is an important factor for their economics and photovoltaics can be considered alternative solution to cover electrical heating needs. On the other hand, plants cultivated under different solar radiation intensities usually appear physiological adaptations. The objective this research was investigate effect photovoltaic panels’ induced partial shading on growth characteristics lettuce (Lactuca sativa L.) rocket (Eruca Mill.) plants. Our results indicate that...

Oxidative stress seems to be a cardinal feature of cholestasis, implicated in the pathophysiology organ injury not only liver, but also several extrahepatic tissues. The present study was designed assess directly oxidative vital organs experimentally jaundiced rats by measuring key marker superoxide radical (O2(*-)). Twelve male Wistar underwent laparotomy and were divided into two groups - group I (n = 6) sham operated, II bile-duct ligated. Ten days later, O2(*-) formation rate quantified...

Summary: Purpose: In the present study, we examined effects of pentylenetetrazol (PTZ) administration on thiol redox state (TRS), lipid peroxidation, and protein oxidation in mouse striatum to (a) quantitate major components TRS relate them oxidative stress, (b) investigate whether neuronal activation without synchronization, induced by subconvulsive doses PTZ, can cause similar qualitative this brain area. Specifically, glutathione (GSH), disulfide (GSSG), cysteine (CSH), thiols (PSH), (P)...

Certain phytopathogenic fungi differentiate by forming sclerotia an unclear biochemical mechanism. We have proposed that sclerotial differentiation might be regulated fungal antioxidant defense. Part of this defense ascorbic acid, which in its reduced form is a well-known antioxidant. This natural was studied Sclerotium rolfsii relation to oxidative-growth conditions, developmental stages and strain-differentiating ability. The transition strain from the undifferentiated differentiated stage...

Plant catalases exhibit spatial and temporal distribution of their activity. Moreover, except from the typical monofunctional catalase, a bifunctional catalase-peroxidase has been reported. The aim this study was to investigate whether leaf root six different plant species (Lactuca sativa, Cichorium endivia, Apium graveolens, Petroselinum crispum, Lycopersicon esculentum, Solanum melongena) correspond or type based on sensitivity inhibitor 3-amino-1,2,4-triazole (3-AT). all seem be since...

Certain phytopathogenic fungi differentiate by forming sclerotia an unclear biochemical mechanism. We have proposed that sclerotial differentiation might be regulated fungal antioxidant defense. Part of this defense ascorbic acid, which in its reduced form is a well-known antioxidant. This natural was studied Sclerotium rolfsii relation to oxidative-growth conditions, developmental stages and strain-differentiating ability. The transition strain from the undifferentiated differentiated stage...

Considering the physiological importance of nitrogen (N) for plant growth and its controversial role in oxidative status, objective this research was to investigate effect three different N nutrition solution concentrations (1.8, 3.6 11.5 mM) on leaf root stress aeroponically cultured basil (Ocimum basilicum L.) plants. Catalase (CAT) activity lipid peroxidation (LP) were used as indexes at two stages (10 15 week-old plants respectively). Leaf CAT enhanced by increment concentration both...

The investigation about the leaf wounding effect on plant physiological procedures and pigments content will contribute to understanding of plants’ responses against this abiotic stress. During experiment, some parameters such as photosynthesis, transpiration stomatal conductance well chlorophyll anthocyanin contents Ocimum basilicum, Salvia officinalis, Mentha piperita plants were measured for 20–40 days. All measurements conducted control wounded while in latter, they both intact leaves. A...

ObjectivesTo study the effect of clonidine pre-treatment on hemorrhagic shock (H/S)-induced endotoxemia and oxidative stress (OS) in three vital organs rat.MethodsThe protocol consisted two arms: one for measurement organic hydroperoxide (LOOH) superoxide radical (O2−·) production gut, liver, lungs (n = 32 rats) endotoxin portal systemic circulation rats). Four animal groups (sham, clonidine, H/S, clonidine-H/S group) were used each arm. Three hours after H/S concominant blood resuscitation,...

Among various C4 plants we found a wide range in the level of inactivation phosphoenolpyruvate carboxylase (PEPC) at low temperature (0 °C). The activity 2-fold diluted enzyme crude leaf extracts after 60 min incubation (compared to zero time incubation) pH 7.5, remained above 87 % temperatures for species Setaria verticillata, Portulaca oleracea, and Saccharum officinarum, between 11 17 Cynodon dactylon Atriplex halimus. exhibited intermediate levels (42 58 %) Amaranthus sp., Zea mays,...

Light intensity and wind are critical environmental factors of abiotic stress on plants, triggering a considerable number morphological physiological responses. This study tested the hypothesis that different light conditions (full sunlight ± wind, shade wind) would affect leaf content photosynthetic pigments anthocyanins, as well plant height, fresh dry weight aboveground part, Water-Use Efficiency

Cytosolic pyruvate kinase (EC 2.7.1.40) from leaves of the C 4 plant Cynodon dactylon (L.) Pers. was purified 56‐fold to apparent homogeneity by polyethylene glycol fractionation and column chromatography including Q‐Sepharose anion exchanger, ADP‐Agarose gel filtration. Nondenaturing PAGE final preparation resulted in a single protein band that co‐migrated with activity. Gel filtration SDS‐PAGE (± DTT) showed this enzyme has molecular mass 200 kDa is homotetramer subunit 50 kDa. The...