Showing papers in "Journal of Plant Physiology in 2014"

TL;DR: In this article, the authors summarized factors determining the plant availability of soil potassium (K), the role of K in crop yield formation and product quality, and the dependence of crop stress resistance on K nutrition.

TL;DR: It appears that K(+) is not just the essential nutrient required to support optimal plant growth and yield but is also an important signaling agent mediating a wide range of plant adaptive responses to environment.

TL;DR: This review focuses on three families of plant K(+) transport systems that are active at the plasma membrane: the Shaker K(+, channel family, comprised of voltage-gated channels that dominate the plasma membranes conductance to K(+ in most environmental conditions, and two families of transporters, the HAK/KUP/KT K(-) transporter family, which includes some high-affinity transporter families.

TL;DR: This article presents an ad hoc mechanistic model that can account for ion permeation through HKTs and summarizes findings on transporters of the HKT type, which are reported to transport Na(+) and/or Na(+ and K(+), and may play a central role inNa(+) utilization and detoxification in plants.

TL;DR: TEM analysis suggests that the observed effects of 1 and 10 mg L(-1) AgNPs on germinating Triticum aestivum L. seedlings were due primarily to the release of Ag ions fromAgNPs.

TL;DR: The data suggest that the beneficial effect of Se during an earlier growth period could be related to avoidance of cumulative damage upon exposure to Cd, thus reducing the negative consequences of oxidative stress caused by heavy metal toxicity.

TL;DR: Results indicated that ACC deaminase-containing SA3 brought a putative protection mechanism (decrease in ACC content) under salt stress, apart from alleviating ethylene-induced damage, by enhancing nodulation and AMF colonization in the plants resulting in improved nutrient uptake and plant growth.

TL;DR: Some crucial properties of the ancestral of K(+) transport systems have been conserved through evolution while others have diverged among different kingdoms.

TL;DR: In this paper, the depolarization and activation of cation channels are required for K(+) efflux from plant roots, which is mainly induced by stresses, such as pathogens, salinity, freezing, oxidants and heavy metals.

TL;DR: This chapter discusses how both long distance transport between different organs and intracellular transport between organelles works in general and in particular for K(+).

TL;DR: Treatment with methyl jasmonate and salicylic acid resulted in an alteration of the phenolic metabolism, enhancing chilling tolerance, possibly through increased production of total phenolics and the activation of PAL and inhibition of POD.

TL;DR: This review briefly discusses the synthesis of ABA, components of the ABA signal transduction pathway and the plants' responses at the genetic and epigenetic levels, and focuses on the role of RNAs in regulating stress responses and various approaches to develop stress-tolerant transgenic plants.

TL;DR: It is concluded that PN is primarily limited in drought-stressed G. hirsutum by decreased stomatal conductance, along with increases in respiratory and photorespiratory carbon losses, not inhibition or down-regulation of electron transport through photosystem II.

TL;DR: The results showed that in contrast with the responses of ABA, GA brought about a gradual decrease of l-cysteine desulfhydrase (LCD) activity and H2S production, and thereafter PCD occurred, and this effect of NaHS was in an H1S-dependent fashion.

TL;DR: AM fungi can alter host responses to salinity stress, improving more the P, K, Fe and Cu plant nutrition in Cleopatra mandarin than in Alemow plants, demonstrating that AM compensates the growth limitations imposed by salinity.

TL;DR: It is indicated that salinity drastically affects redox and NO homeostasis in tomato roots and these molecules, which show the interaction between ROS and RNS metabolisms, could be excellent parameters for evaluating the physiological conditions of plants under adverse stress conditions.

TL;DR: The results indicated that HRW-induced adventitious rooting is, at least partially, correlated with the HO-1/CO-mediated responses, and suggested that exogenous HRW treatment on plants might be a good option to induce root organogenesis.

TL;DR: It was shown that lead is not taken up into Micrasterias at all but exerts its adverse effects on cell growth by substituting cell wall bound calcium, and results indicate that cadmium is taken up by calcium and iron transporters, whereas chromium appears to enter the algae cells via iron and zinc carriers.

TL;DR: It is hypothesized that blue light may predispose plants to better cope with stress and increase the stomatal conductance in some treatments, with higher blue light ratio all phenolic acids and flavonoids increased.

TL;DR: The results suggest that blue LED irradiation at night may be effective in increasing anthocyanin and sugar concentrations in grape berries, and there is evidence that another factor may influence anthOCyanin concentrations in Grape berry skin significantly more than endogenous ABA.

TL;DR: In the tonoplast two major currents are mediated by SV and FV vacuolar channels, respectively, which are virtually impermeable for anions, which may operate as K(+)-sensing valves, controlling K(+) distribution between the vacuole and the cytosol.

TL;DR: It is concluded that mitochondrial dysfunction in artificially aged seeds is due to retarded mitochondrial and ASC-GSH cycle activity and elevated ROS accumulation.

TL;DR: Network analysis using RiceNet suggests a functional gene network involving nine rice ABC transporters that are differentially regulated by drought stress in root, further enhancing the prediction of biological function.

TL;DR: The current review provides a compilation of results from existing literature on the effects of several abiotic stress conditions on nodule performance and N2 fixation and observes that a better understanding of these metabolic effects of changing environment in nodule functioning would require an integrated and synergistic investigation based on widely used and novel protocols.

TL;DR: It is shown that overexpression of SbVPPase in transgenic finger millet enhances the plant's performance under salt stress and suggests efficient scavenging of reactive oxygen species (ROS) in transgenics and, as a consequence, probably alleviation of salt stress.

TL;DR: The relatively good tolerance of M. crystallinum to Ni suggests that this halophyte species could be used in the phytoextraction of moderately polluted saline soils.

TL;DR: Although inconsistencies exist in some of the information related to the responses of the PM transport proteins to salinity in different species/cultivars, their key roles in adaptation of plants to high salinity is obvious and evident, and cannot be precluded.

TL;DR: Regulation of PEPC activity by phosphorylation was evaluated and found to be involved in the stress response and the amount of NADP-ME protein and transcription of mRNA for chloroplastic NADp-ME isoform were increased indicating their enhanced synthesis de novo.

TL;DR: The achieved data show that the effect of down-regulation of CK levels on AES may be mediated by altered habit, resulting in improved stress tolerance, which is associated with diminished stress impact on photosynthesis, and changes in source/sink relations.

TL;DR: Results suggest that stress-induced flowering in pharbitis is induced, at least partly, by SA, and the synthesis of SA is promoted by PAL.