The phytohormone abscisic acid (ABA) plays an important role in plant development and environmental stress response. Additionally, ABA also regulates secondary metabolism such as artemisinin in the medicinal plant Artemisia annua L. Although an earlier study showed that ABA receptor, AaPYL9, plays a positive role in ABA-induced artemisinin content improvement, many components in the ABA signali...

A study was made of how water status (rainfed vs. irrigated) and crop load (no cluster thinning vs. cluster thinning) can together affect the grapes of Vitis vinifera cv. Tempranillo vines growing in a semiarid zone of Extremadura (Spain). The grapes were monitored at different stages of ripening, measuring the peroxidase (POX) and superoxide dismutase (SOD) antioxidant activities and the pheno...

A seed's ability to properly germinate largely depends on its oxidative poise. The level of reactive oxygen species (ROS) in Arabidopsis (Arabidopsis thaliana) is controlled by a large gene network, which includes the gene coding for the hydrogen peroxide-scavenging enzyme, cytosolic ASCORBATE PEROXIDASE6 (APX6), yet its specific function has remained unknown. In this study, we show that seeds ...

To explain the relationship between rhizosphere fungi diversity and community composition of alfalfa under drought stress endogenous hormones in alfalfa, we used sand culture to investigate performance Medicago sativa ‘Qingshui’ (or QS), M. ‘Longdong’ LD), varia ‘Gongnong No. 4’ GN) with contrasting different degrees tolerance. After 7 days treatment, underwent significant changes, found Ascomy...

The Arabidopsis thaliana RING-type E3 ligase KEEP ON GOING (KEG) is a negative regulator of abscisic acid (ABA) signaling. Seedlings homozygous for T-DNA insertions in KEG accumulate high levels of the ABA-responsive transcription factor ABSCISIC ACID-INSENSITIVE5 (ABI5). Here, we demonstrate that KEG E3 ligase activity is required for the regulation of ABI5 abundance. KEG ubiquitinates ABI5 in...

The Arabidopsis thaliana RING-type E3 ligase KEEP ON GOING (KEG) is a negative regulator of abscisic acid (ABA) signaling. Seedlings homozygous for T-DNA insertions in KEG accumulate high levels of the ABA-responsive transcription factor ABSCISIC ACID-INSENSITIVE5 (ABI5). Here, we demonstrate that KEG E3 ligase activity is required for the regulation of ABI5 abundance. KEG ubiquitinates ABI5 in...

Plant hormones are major growth regulating (auxins, the gibberellins (GAs), cytokinins) which easily available in plant and some also worked as a inhibitor such ethylene, abscisic acid (ABA). These showed an effective result growth, flowering, fruiting, aging, senescence, color enhancement of fruits, prevention or promotion stem elongation, leafing, leaf fall, shoot, root. misused for increase ...

The trihelix family genes have important functions in light-relevant and other developmental processes, but their roles in response to adverse environment are largely unclear. In this study, we identified a new gene, BnSIP1-1, which fell in the SIP1 (6b INTERACTING PROTEIN1) clade of the trihelix family with two trihelix DNA binding domains and a fourth amphipathic α-helix. BnSIP1-1 protein spe...

The effect of different nitrogen sources – KNO3, NH4NO3 and NH4Cl – on glutamine synthetase and glutamate synthase activities of radish cotyledons (Raphanus sativus L.) in the presence or absence of light was investigated. The plants were treated with different phytohormones viz. Kinetin (KN), gibberellic acid (GA) and abscisic acid (ABA). In dark ammonia supplementation was effective in promot...