Showing papers in "Environmental and Experimental Botany in 2016"

TL;DR: For cucumber seedlings, morphological responses influenced plant growth since B PF responses in growth parameters closely matched those in morphological parameter (i.e., dry mass) and more research is needed to find the optimal spectrum for the growth and development of horticultural crops under sole source electrical lighting such as LEDs.

TL;DR: An overview of UV- and blue-radiations signaling pathways in some key physiological processes is presented and effects of plant exposure to these wavelengths on phenotype as well as on contents in useful metabolites and resistance to bio aggressors are described.

TL;DR: This review presents the state of the art in perception of red (R) and far-red (FR) wavelengths and of the R:FR ratio by plants, phenotypic plant responses, and the molecular mechanisms related to these responses and the mechanisms underlying these differences in plant responses are addressed.

TL;DR: This comprehensive review encompasses the mechanisms of transport, metabolism, and tolerance that plants show in response to As, as well as some recent advancement in plant breeding, genetic modifications and remediation approaches to overcome soil and food contamination problems.

TL;DR: In this article, the effects of exogenous application of 24-epibrassinolide (24-EBL) in the physiological and biochemical responses of Solanum nigrum L. exposed to nickel (Ni) were evaluated.

TL;DR: The results demonstrate that exogenous application of EBL is more effective to ameliorate the Cr metal stress by up-regulating the activity of antioxidative enzymes.

TL;DR: The transgenic overexpression of halophytic genes in crops will be discussed as a successful mechanism for the induction of salt tolerance and the advances in genetic engineering technology for the production of genetically modified crops to achieve the improved salinity tolerance under field conditions will also be discussed.

TL;DR: Evidence from the JIP-test indicated that inhibition of the oxygen evolution complexes (OEC) and inactivation of PSII reaction centers (RCs) were the primary cause of heat damage, which indicates that acquired heat tolerance in croftonweed populations results from plant adaptation to ambient high temperatures.

TL;DR: In this paper, physiological effects and possible cell internalization of citric acid coated-Fe3O4 nanoparticles (5, 10, 15, 20 ) on wheat (Triticum aestivum L.) plants grown five days under hydroponic conditions were evaluated.

TL;DR: A meta-analysis of the interactive effects of e CO2 and experimentally imposed drought on biomass and yield of crops and pasture grasses found that for crop species with C3 metabolism, eCO2 stimulates biomass accumulation and yield under both well-watered and dry conditions to a similar extent, suggesting that crops grown in areas with limited water availability will benefit from future eCO3, regardless of their metabolism.

TL;DR: It is suggested that increased N nutrition may have contributed to drought tolerance in P. simonii by increasing NH 4 + uptake and decreasing nitrogen metabolism.

TL;DR: In this paper, the authors compared red and blue-weighted light spectra in relation to biosynthesis of the compounds and found that red leaf lettuce was much more responsive to supplemental blue light.

TL;DR: The obtained data suggest involvement of dehydrins in the range of defense reactions induced by SA-treatment contributing significantly to development of plant resistance to subsequent action of stress.

TL;DR: It is concluded that exposure to pure red light is harmful to photosynthetic systems in both developing and developed leaves of cucumber, but the effect on CO2 assimilation rate and Fv/Fm is much more severe in developing leaves than in mature leaves at low growth irradiance.

TL;DR: RIL66 could be selected as a good plant material to be used as rootstock to improve tomato growth and productivity under water limiting conditions and this grafting strategy should be combined with inoculation of R. irregularis and V. paradoxus in order to improve plant yield under conditions of drought stress.

TL;DR: Application of PGPR enhanced the plant growth under individual stresses due to enhanced activity of certain of antioxidative enzymes and resulted in the decreased plant antioxidation activity irrespective of increasing leaf B concentrations which in turn enhanced the rice tolerance.

TL;DR: In this article, a hydroponic experiment with three NO3− levels (0, 2.86 and 5.72mM) and two Cd concentrations (0 and 100μM) were conducted.

TL;DR: Growth under red, blue and green light (RB, RGB) affects differently tomato and plane traits and reduces isoprene emission by plane and change monoterpene blend in tomato.

TL;DR: It is suggested that changes of PAs and phytohormones play critical roles in the improvement of drought tolerance in white clover, which are attributed to the alleviation of oxidative stress, inhibition of leaf senescence, and maintenance of growth under drought stress.

TL;DR: Si nutrition is identified as a central player that restricts photosynthetic impairment in As-treated plants, in addition to limiting As uptake via modulation of the expression of genes with prime importance in As uptake and translocation.

TL;DR: By using a three-compartment cultivation system, it is demonstrated that extraradical mycelium (ERM) could take up and transport Cr to mycorrhizal roots, but restrained Cr translocation from roots to shoots, and thus contributed to Cr immobilization in roots and relieved Cr phytotoxicity.

TL;DR: Investigation of the comparative responses to Si and Se in relation to Cd uptake, compartmentation in roots, and xylem transport in flowering Chinese cabbage plants under Cd stress reveals that Si-mediated alleviation of Cd toxicity may be due to decreasing Cd concentrations and its proportions in symplasts and apoplasts, enhancing adsorption of CD on cell walls, and restriction root-to-shoot Cd translocation.

TL;DR: In this article, the effect of heavy metal stress on seed growth of C. angustifolia was investigated and the results showed drastic toxicity on seedling growth, alteration in antioxidant enzymes, morphological changes and metal accumulation in various plant parts.

TL;DR: In this paper, a model small-scale field experiment was set up to investigate the selenium uptake by twelve different plant species growing at an uncultivated meadow, as well as the effect of Se foliar application on the uptake of essential elements for plants calcium (Ca), copper (Cu), iron (Fe), potassium (K), magnesium (Mg), manganese (Mn), phosphorus (P), sulfur (S), and zinc (Zn).

TL;DR: In this article, stable isotopes of hydrogen and oxygen from twig xylem water, soil water at different depths, precipitation and groundwater were analyzed in 10-, 22-, 32- and 42-year-old Mongolian pine plantations to identify the sources of water used by the trees during different seasons (spring, summer and autumn).

TL;DR: Alfalfa plants mitigate the oxidative damage through induction of antioxidant enzymes, and the expression of chaperone proteins to alleviate Pb toxicity; metabolic changes that could be exploited as Pb-stress bioindicators.

TL;DR: The role of the stem as a potential water reservoir to adapt against drought stress should be further examined to identify key elements for drought stress survival and recovery at the level of the potato whole plant.

TL;DR: The inoculation of cucumber plants with the PGPR Azospirillum brasilense induced and anticipated the activation of Fe-deficiency mechanisms in both Fe-sufficient and Fe- deficient plants, thereby enhancing the capability of plants to cope with Fe stress.

TL;DR: In this article, the root oxalate exudation was investigated in Cd-stressed wheat, and it was shown that Si supply decreased Cd accumulation in plant, which resulted in better plant growth.

TL;DR: In this paper, the potential stress-induced response to a commercial source of TiO 2 nanoparticles (NPs) 2 -NPs laboratory-made sample was studied in the Vicia faba root.