Showing papers in "Environmental and Experimental Botany in 2015"

TL;DR: This review revises primary mechanisms underlying plant oxidative stress at the cellular level through the use of directed evolution techniques to prevent protein oxidation, bioengineering of antioxidant activities as well as modification of ROS sensing mechanisms.

TL;DR: The current review of the literature highlights the potential of PGP bacteria, which facilitate phytoremediation of heavy metals in contaminated areas.

TL;DR: In addition to the most frequently discussed putative roles of anthocyanins as antioxidants and sunscreens, other less-explored possibilities might equally serve to ameliorate plant function under, for example, under conditions of mineral imbalance.

TL;DR: The holistic approach about the role of jasmonates in counteracting the stress whether biotic or abiotic is given.

TL;DR: The possible mechanisms underlying how MYB proteins are regulated at the transcriptional, posttranscriptional and protein levels are highlighted, and how they regulate downstream target gene networks in association with abiotic stresses is highlighted.

TL;DR: A review on silicon dynamics in rice considers recent advances in the understanding of the role of silicon in rice, and the challenges of maintaining adequate silicon fertility within rice paddy systems.

TL;DR: Current modeled simulation of future forest distribution suggests the expansion of forests at the highest latitudes and altitudes, alongside with a reduction in the hottest and driest Mediterranean regions of South Europe.

TL;DR: In this paper, the role of exogenous glutathione (GSH) in conferring high temperature stress (HT, 42°C) tolerance in mung bean (Vigna radiata L. cv. Binamoog-1) seedlings was investigated.

TL;DR: In this paper, the changes of chlorophyll a fluorescence parameters, P700 absorption change and ROS production were investigated in Lemna gibba plants exposed to salt stress (0-400mM NaCl).

TL;DR: In this paper, the root hydraulic conductance (Lp) of the seedlings were inhibited by salt, but Si application alleviated this inhibition, indicating that aquaporin was responsible for the alleviation of the decrease in Lp.

TL;DR: In this article, a review addresses the general deleterious effects of heavy metals in plants, present known mechanisms of adaptation to heavy metal stress in halophytes and discusses the potential of halophyte for phytoremediation of contaminated soils.

TL;DR: Various aspects of multiple stress applications published within the last few years are discussed and the importance to study biotic and abiotic stress combinations in order to predict plant responses to future climate changes is pronounced.

TL;DR: Oudneya has the ability to activate a complex antioxidative defense system involved in the drought tolerance regulation probably involving H2O2-dependent signals, which is suggested to be mainly due to the ASC–GSH cycle efficiency.

TL;DR: The stay-green trait, improved ability of stomata regulation and higher contents of reactive oxygen species scavengers seemed to be part of the protective mechanisms in heat-tolerant tomatoes.

TL;DR: It is suggested that high tolerance to D + S stress in Tibetan wild barley is closely related to enhanced callose, chitinase and carbohydrate metabolism as well as ROS level control through modulation of antioxidant enzymes, their secondary metabolism and their translation level.

TL;DR: The overall aim is to connect the knowledge gained with thermal perception and the signaling that drives plant responses, with major focus on the latter.

TL;DR: SA metabolism (biosynthesis, conjugation and accumulation) and the signalling pathways that control SA levels are described here and it is possible to use the genes encoding members of this module as indicators to identify stress situations where SA signalling is activated.

TL;DR: An up-to-date overview of carotenoids as elements of information storage system for the responses to environmental signals is provided together with suggestions for future directions of research.

TL;DR: In this paper, the authors discuss about how relevant secondary metabolites, namely isoprene, carotenoids, and flavonoids may complement the function of primary antioxidants to avoid irreversible oxidative damage, when plants experience intense, even transient stress events.

TL;DR: In this article, the effects of EBL, Spm and their dual application on the ROS scavenging antioxidant defense machinery in plants subjected to drought conditions were investigated, and dual application improved the plant drought tolerance and decreased the accumulation of ROS.

TL;DR: In this paper, the effects of selenium (Se) and arsenic (As) on the growth and the antioxidant system of flue-cured tobacco (FCT) as well as the contents and species of As and Se in FCT through a hydroponic experiment and clarify the possible mechanism how Se alleviates the toxicity of As.

TL;DR: It was shown that apart from hydraulic signals, electric signals also play a significant role in root-to-shoot communication of drought-stressed plants and evidence was found for a link between electrical signals and photosynthesis as well as respiration.

TL;DR: It is suggested that the highest greenness increase following water restriction in the most drought susceptible varieties is an expression of more conservative strategies under drought, which under moderate water stress, are not useful from a productive point of view.

TL;DR: While phospholipases have been shown to be essential for plant growth and adaptability, many aspects of phosphoglycerolipid signalling at the molecular level remain unknown.

TL;DR: In this article, the impact of light intensity and the relevance of blue light for the acclimation of pepper plants to UV radiation was evaluated in two experiments and it was shown that a higher amount of blue-light in the active radiation spectrum significantly improves the plant acclimations and recovery toUV radiation.

TL;DR: In this paper, the role of photorespiration in photoprotective mechanisms in photosystem II of Jatropha curcas plants was evaluated in which stage of water deficit.

TL;DR: Betalains, a small group of alkaloid pigments restricted to certain families of the Caryophyllales, have comparable optical properties and share similar histological locations in vegetative tissues with those of the more abundant anthocyanins, suggesting that they may confer adaptive benefits not found in those species that produce anthOCyanins.

TL;DR: The drought-induced reduction of Cd uptake in castor plants may have resulted from the inhibition of root growth and alteration of root morphology, rather than from the decreased transpiration, as no significant correlation was found between Cd accumulation and transpiration rate.

TL;DR: In this article, HPLC-ICP-MS revealed the presence of four species of Sb in the soil and plants, including SbIII, SbV, TMSb and UnkSb.

TL;DR: In this article, the authors investigated drought responses in first (BC 1 ) and second (BC 2 ) backcross generation hybrids of Trifolium repens L. uniflorum L., and compared these to high-yielding T. repens (white clover) cultivars.