The purpose of this study was to explore the effects of soil contamination by selected metals (cadmium, copper, nickel, lead or zinc) on the antioxidant response of Vicia faba plants. The levels of the antioxidants: glutathione, proline, non-protein thiols, as well as guaiacol peroxidase and catalase activities were measured in the upper parts of plants. Additionally, the potential bioavailabil...

The aim of this study was to evaluate the effects of H2O2 on germination and acclimation of maize plants subject to salt stress. Three experiments using BRS3003 seeds, a triple hybrid of maize, were carried out in a growth room and in greenhouse. In the first experiment, H2O2 accelerated the germination percentage of seeds at 100 mM, but not at 500 mM. In the second experiment, the pretreatment...

Salinity affects normal growth and development of plants depending on their capacity to overcome the induced stress. The present study was focused on the response and regulation of the antioxidant defence system in Brassica oleracea roots under short and long salt treatments. The function and the implications of hydrogen peroxide as a stressor or as a signalling molecule were also studied. Two ...

Fruit tree culture is at the brink of disaster in arid to semi-arid regions due low water availability. A pot experiment was carried out analyze whether foliar application salicylic acid (SA) can improve stress tolerance Syzygiumcumini. Saplings were subjected control (CK, 90% field capacity, FC), medium (MS, 60% FC) and high (HS, 30% along with 0.5 1.0 mM SA. Results showed that soil deficit s...

Peppermint (Mentha piperita L.), a herbaceous and perennial species whichis produced mainly for the medicine and food. The peppermint plants were initiated from 10 cm-long rhizome cuttings followed by transferring into pots. The 48 h-treated plants with methyl jasmonate (MJ) concentrations (0, 0.1, 0.5 mM) were assessed for their total soluble proteins, malondialdehyde (MDA), chlorophylls a, b ...

The current study investigated the effects of Pseudomonas putida strain KT2440 on drought tolerance tomato plants during fruit maturation. Plants at ripening stage mature-green were not watered for 20 days to promote stress. Concentrations photosynthetic pigments determined. Bacteria-soaked (BSS) had higher levels chlorophyll and carotenoids than non-soaked (DWS) under stress conditions. Compar...

The activity of ascorbate peroxidase (APX) has been studied with H(2)O(2) and various reducing substrates. The activity decreased in the order pyrogallol>ascorbate>guaiacol>2, 2'-azino-bis-(3-ethylbenzthiazoline-6-sulphonic acid) (ABTS). The inactivation of APX with H(2)O(2) as the sole substrate was studied. The number of H(2)O(2) molecules required for maximal inactivation of the enzyme was d...

Plants are generally subjected to a combination of different conditions such as magnetic field and soil bacteria in their life. The present investigation tried to compare the effects and interactions of magnetic field and rhizobial inoculant in alfalfa. A pot experiment was performed under a natural condition by a factorial design to ...

Auxin not only controls the development processes, but also regulates stress responses of plants. In this investigation, we explored potential roles exogenously applied indole-3-acetic acid (IAA) in conferring salt tolerance faba bean (Vicia L.). Our results showed that foliar application IAA (200 ppm) to salt-exposed (60 mM and 150 NaCl) plants promoted growth, which was evidenced by enhanced ...