Showing papers in "Environmental and Experimental Botany in 2019"

TL;DR: This review has concentrated on fresh new information and other promising and emerging topics of oxidative stress and antioxidant mechanisms in plants, giving particular attention to genotoxicity, transgenerational alterations and quantitative trait loci associated with enhancements in the plant tolerance to stresses.

TL;DR: In this paper, the effects of heavy metal-induced reactive oxygen species (ROS) on plant cell wall-related processes and the stimulatory/inhibitory effects of ROS on plant secondary metabolism were investigated.

TL;DR: Application of exogenous NO alleviates the negative stress effects in plants and improves antioxidant activity in most plant species, and S-nitrosylation and tyrosine nitration are two NO-mediated posttranslational modification.

TL;DR: In this paper, the stress protective role of selenium (Se) against chromium toxicity in Brassica juncea L. has been investigated and shown that Se is able to protect the plants by restoring growth, reducing the oxidative damage (low levels of superoxide anions and hydrogen peroxide), and strengthened the enzymatic and nonenzymatic defence systems of B.juncea plants.

TL;DR: The results suggest that an optimal endogenous melatonin level is critical, not only for its self-antioxidant capacity, but also for maintaining an efficient enzymatic antioxidant system and redox homeostasis under perturbed environmental conditions.

TL;DR: In this article, the involvement of nitric oxide (as sodium nitroprusside, SNP) in the reversal of glucose-inhibited photosynthetic characteristics in the presence or absence of salt stress (100mM NaCl) was studied in wheat.

TL;DR: In this paper, the effects of Azospirillum lipoferum FK1 strain on chickpea growth and performance under saline conditions (0, 75 and 150mM NaCl) were investigated.

TL;DR: Hydrogen sulfide is part of a suite of small reactive molecules which are known to be involved in cell signaling events in plants and can lead to changes in the activity of antioxidants, cell signaling proteins such as mitogen activated protein kinases (MAPKs) and gene expression.

TL;DR: A comprehensive review on the interaction between NO and abscisic acid can be found in this paper, where the authors provide a comprehensive overview of the current knowledge on NO and ABA.

TL;DR: In this article, Salicylic acid (SA)-mediated stress responses are associated with an accumulation of reactive oxygen species (ROS) and proline metabolism, antioxidant activity, and redox status to SA pretreatment and/or drought imposition.

TL;DR: The ROS and RCS production mechanisms and sites in plant cells are introduced and the RCS detoxification mechanisms including aldehyde dehydrogenases, aldo/keto reductases, 2-alkenal reductase and glutathione transferases are described and evidence related to signal roles of RCS are discussed.

TL;DR: Male organ growth is more sensitive to HT than female organs because of the accelerated flowering speed of the tassel inflorescence, and starch granule number and size in the pollen decreased with the increased temperature.

TL;DR: The present review gives the holistic alteration of plant lipid in response to a series of abiotic stresses based on the meta-analysis and the possible underlying mechanisms of membrane lipid remodeling in mediating abiotic stress tolerance are discussed.

TL;DR: In this paper, a green-house experiment was conducted to investigate the efficiency of three heavy metal-tolerant plant growth promoting bacterial strains (HMT-PGPB) (Alcaligenes faecalis MG257493.1, Bacillus cereus MG257494.1 and Bacillus MG966440.1) to alleviate the heavy metal's toxic effects on sorghum plant.

TL;DR: In this article, the dual role of reactive oxygen and nitrogen species (ROS and RNS) in plant responses to Cd stress is discussed, in low concentrations, as signalling molecules capable of orchestrating plant responses on the one hand, and at higher concentrations as inducers on the other.

TL;DR: In this paper, the authors used 20-d-old pea (Pisum sativum L.) plants, which were used as a model due to their agronomic importance, to expose them to 50 μM arsenate (AsV) and found that AsV triggered a significant reduction in growth parameters and an increase in oxidative markers (lipid and protein oxidation) in both roots and leaves.

TL;DR: The root fungal endophyte Piriformospora indica promotes the growth and survival of plants belonging to a number of species when exposed to various abiotic stresses, including drought, a major constraint of crop productivity.

TL;DR: In this article, the authors found that myb111 deficiency significantly decreased salt tolerance in Arabidopsis, whereas MYB111 overproduction dramatically increased during the stages of seed germination and seedling growth.

TL;DR: In this article, the effect of selenium (Se) in reducing Cadmium (Cd) concentration in seed, and revealed the underlying regulating mechanisms in root of rape was investigated.

TL;DR: In this paper, a review of the role of reactive nitrogen species (RNS) in plant response and adaptation to salt stress through various local and systemic signal transduction pathways is presented.

TL;DR: In this paper, the roles of nitric oxide (NO) and melatonin, two ubiquitous signal molecules involved in diverse plant physiological processes and stress responses, were investigated in Arabidopsis responses to aluminum toxicity.

TL;DR: In this article, the authors investigated the possibility of phytoextraction potential and stress tolerance of Glycine max L. in multi-metal contaminated soil by the manipulation of plant growth promoting endophyte Kocuria rhizophila and citric acid.

TL;DR: In this paper, the effects of pH on rice uptake of heavy metals were quite different and the behavior of Zn and Cd were comparable, similar to Mn, but opposite of Fe.

TL;DR: In this paper, the effect of exogenously applied epibrassinolide (EBL; foliar spray) and H2O2 (root dipping) to nickel (Ni) stressed plants was studied.

TL;DR: In this paper, a super high-yield hybrid rice LYP9 was employed to study the change of photosynthetic fluorescence, structure and composition of thylakoid membrane as well as its physiological property by polyethylene glycol (PEG) and silicon (Si) treatment.

TL;DR: Results indicated that B. pumilus improves G. uralensis growth under drought stress through the modification of antioxidants accumulation and enhances glycyrrhizic acid content by the incremental expression of key enzymes.

TL;DR: In this paper, the functional hierarchy and relationships of salicylic acid and NO in elevated CO2-induced flavonoid biosynthesis in tea leaves were unraveled, showing that SA acts upstream of NO in the process of secondary metabolism.

TL;DR: In this article, the authors investigated the morphological characteristics and stem carbohydrate accumulation of different soybean (Glycine max L.) genotypes under different light environments (normal light, low light and shading stress).

TL;DR: In this article, the expression levels of pectin-related genes SlQUA1 and SlPME1 were found to be upregulated by 2.1-6.5-fold and 2.38-5.09-fold with in 6-24h, respectively.