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Pinus radiata D. Don is one of the most abundant species in the north of Spain. Knowledge of drought response mechanisms is essential to guarantee plantation survival under reduced water supply as pre...Read More
Antagonism between abscisic acid and ethylene in Arabidopsis acts in parallel with the reciprocal regulation of their metabolism and signaling pathways.
Although abscisic acid (ABA) and ethylene have antagonistic functions in the control of plant growth and development, including seed germination and early seedling development, it remains unknown whet...Read More
[Role of ethylene in the control of gametophyte-sporophyte interactions in the course of the progamic phase of fertilization].
We investigated dynamics of the content of 1-aminocyclopropane-l-carboxylic acid (ACC) and ethylene production in male gametophyte development and germination in fertile (self-compatible and self-inco...Read More
We identify an Arabidopsis pyridoxal-phosphate-dependent aminotransferase, VAS1, whose loss-of-function simultaneously increases amounts of the phytohormone auxin and the ethylene precursor 1-aminocyc...Read More
GbWRKY1, a novel cotton (Gossypium barbadense) WRKY gene isolated from a bacteriophage full-length cDNA library, is induced by infection with Verticillium dahliae.
WRKY transcription factor proteins play important roles in diverse stress responses. In this study, we first cloned a novel WRKY from our constructed bacteriophage full-length cDNA library for cotton ...Read More
Mature fruit abscission (MFA) is a genetically controlled process, through poorly characterized mechanisms in fleshy fruit that include extensive transcriptional changes. While global transcriptome an...Read More
Identification of genes involved in the ACC-mediated control of root cell elongation in Arabidopsis thaliana.
Along the root axis of Arabidopsis thaliana, cells pass through different developmental stages. In the apical meristem repeated cycles of division increase the numbers of cells. Upon leaving the meris...Read More
Targeted systems biology profiling of tomato fruit reveals coordination of the Yang cycle and a distinct regulation of ethylene biosynthesis during postclimacteric ripening.
The concept of system 1 and system 2 ethylene biosynthesis during climacteric fruit ripening was initially described four decades ago. Although much is known about fruit development and climacteric ri...Read More
Strigolactones (SLs) are plant hormones that suppress lateral shoot branching, and act to regulate root hair elongation and lateral root formation. Here, we show that SLs are regulators of plant perce...Read More
Endogenous ethylene does not regulate opening of unstressed Iris flowers but strongly inhibits it in water-stressed flowers.
The floral buds of Iris flowers (Iris x hollandica) are enclosed by two sheath leaves. Flower opening depends on lifting the flower up to a position whereby the tepals can move laterally. This upward ...Read More
Ethylene signaling negatively regulates freezing tolerance by repressing expression of CBF and type-A ARR genes in Arabidopsis.
The phytohormone ethylene regulates multiple aspects of plant growth and development and responses to environmental stress. However, the exact role of ethylene in freezing stress remains unclear. Here...Read More
Antioxidant enzyme activities and hormonal status in?response to Cd stress in the wetland halophyte Kosteletzkya virginica under saline conditions.
Salt marshes constitute major sinks for heavy metal accumulation but the precise impact of salinity on heavy metal toxicity for halophyte plant species remains largely unknown. Young seedlings of Kost...Read More
The mutualistic basidiomycete Piriformospora indica colonizes roots of mono- and dicotyledonous plants, and thereby improves plant health and yield. Given the capability of P. indica to colonize a bro...Read More
Involvement of source-sink relationship and hormonal control in the response of Medicago ciliaris - Sinorhizobium medicae symbiosis to salt stress.
In order to explore the relationship between leaf hormonal status and source-sink relations in the response of symbiotic nitrogen fixation (SNF) to salt stress, three major phytohormones (cytokinins, ...Read More
Ethylene-responsive miRNAs in roots of Medicago truncatula identified by high-throughput sequencing at whole genome level.
Ethylene is one of the classical plant hormones with a diverse function in plant growth and development. Root elongation is sensitive to ethylene such that treatments with ethylene and the ethylene pr...Read More
Norlittorine and norhyoscyamine identified as products of littorine and hyoscyamine metabolism by 13C-labeling in Datura innoxia hairy roots
The presence of two compounds, norlittorine and norhyoscyamine, has been reported in leaves and roots of Datura innoxia; however their metabolic origin in the tropane alkaloid pathway has remained unk...Read More
Shoot to root communication is necessary to control the expression of iron-acquisition genes in Strategy I plants.
Previous research showed that auxin, ethylene, and nitric oxide (NO) can activate the expression of iron (Fe)-acquisition genes in the roots of Strategy I plants grown with low levels of Fe, but not i...Read More
Ethylene and light act through specific signal transduction mechanisms to coordinate the development of higher plants. Application of 1-aminocyclopropane-1-carboxylic acid (ACC, an ethylene precursor)...Read More
A wide range of plant hormones, including gibberellins (GAs) and auxins are known to be involved in regulating seed and fruit growth and development. Changes in ethylene biosynthesis are also associat...Read More
1-Aminocyclopropane-1-carboxylic acid oxidase: insight into cofactor binding from experimental and theoretical studies.
1-Aminocyclopropane-1-carboxylic acid oxidase (ACCO) is a nonheme Fe(II)-containing enzyme that is related to the 2-oxoglutarate-dependent dioxygenase family. The binding of substrates/cofactors to to...Read More
Structural and mutational studies on substrate specificity and catalysis of Salmonella typhimurium D-cysteine desulfhydrase.
Salmonella typhimurium DCyD (StDCyD) is a fold type II pyridoxal 5' phosphate (PLP)-dependent enzyme that catalyzes the degradation of D-Cys to H(2)S and pyruvate. It also efficiently degrades β...Read More
Arabidopsis Hexokinase-Like1 and Hexokinase1 form a critical node in mediating plant glucose and ethylene responses.
Arabidopsis (Arabidopsis thaliana) Hexokinase-Like1 (HKL1) lacks glucose (Glc) phosphorylation activity and has been shown to act as a negative regulator of plant growth. Interestingly, the protein ha...Read More
We examined the effects of ethylene on the expression of Arabidopsis expansins (AtEXPs). Among the AtEXPs tested, transcription of the AtEXPA5 gene was reduced most by exogenous ethylene. 2-Aminoethox...Read More
The role of histone methylation and H2A.Z occupancy during rapid activation of ethylene responsive genes.
Ethylene signaling pathway leads to rapid gene activation by two hierarchies of transcription factors with EIN3/EIL proteins as primary ones and ERF proteins as secondary ones. The role of chromatin m...Read More
Maximizing crop yield depends on the leaves receiving an optimal supply of water, mineral nutrients, small organic molecules, proteins, and hormones from the root system via the xylem. Soil drying and...Read More
Drug design, in vitro pharmacology, and structure-activity relationships of 3-acylamino-2-aminopropionic acid derivatives, a novel class of partial agonists at the glycine site on the N-methyl-D-aspartate (NMDA) receptor complex.
Retaining agonistic activity at the glycine coagonist site of the NMDA receptor in molecules derived from glycine or d-serine has proven to be difficult because in the vicinity of the alpha-amino acid...Read More
Specificity of putative partial agonist, 1-aminocyclopropanecarboxylic acid, for rat N-methyl-D-aspartate receptor subunits.
The neuroprotective compound, 1-aminocyclopropanecarboxylic acid (ACPC), has been reported to act on the N-methyl-D-aspartate (NMDA) receptors simultaneously as a glycine binding site agonist and a gl...Read More