Gibberellin (GAs) is an important plant hormone that plays a key role in plant growth and development. Gibberellin 2-oxidase (GA2ox) catalyzes the inactivation of biologically active GA or their direct precursors. In this study, five GA2ox genes were isolated from the wild type Poa pratensis 'Baron', named PpGA2ox3, PpGA2ox4, PpGA2ox5, PpGA2ox8, and PpGA2ox9.
View Article and Find Full Text PDFGlobal warming is exhibiting a seasonal trend, while different seasons have different warming variations. However, the impact of seasonal warming on plants remains unclear. This study employed Open Top Chambers (OTCs) to simulate future seasonal warming scenarios in alpine meadow.
View Article and Find Full Text PDFClarireedia spp. is a destructive phytopathogenic fungus that causes turf dollar spot of bent-grass, leading to widespread lawn death. In this study, we explored the antifungal capability of 6-pentyl-2H-pyran-2-one (6PP), a natural metabolite volatilized by microorganisms, which plays an important role in the biological control of turfgrass dollar spot.
View Article and Find Full Text PDFis internationally recognized as a biocontrol fungus for its broad-spectrum antimicrobial activity. Intriguingly, the crosstalk mechanism between the plant and is dynamic, depending on the strains and the plant species. In our previous study, the 192-45 strain showed better pathogen inhibition through the secretive non-volatile and volatile substrates.
View Article and Find Full Text PDFNuclear factor Y (NF-Y) is a heterotrimeric transcription factor that plays an important role in various biological processes in plants, such as flowering regulation, drought resistance, and salt stress. However, few in-depth studies investigated the alfalfa gene family. In this study, in total, 60 genes, including 9 , 26 , and 25 were identified in the alfalfa genome.
View Article and Find Full Text PDFBackground: Zoysia japonica is an important warm-season turfgrass used worldwide. Although the draft genome sequence and a vast amount of next-generation sequencing data have been published, the current genome annotation and complete mRNA structure remain incomplete. Therefore, to analyze the full-length transcriptome of Z.
View Article and Find Full Text PDFThe degradation of chlorophyll is of great significance to plant growth. The chlorophyll reductase NOL (NYC1-like) is in charge of catalyzing the degradation of chlorophyll and maintaining the stability of the photosystem. However, the molecular mechanisms of NOL-mediated chlorophyll degradation, senescence, and photosynthesis and its functions in other metabolic pathways remain unclear, especially in warm-season turfgrass.
View Article and Find Full Text PDFSalt stress is among the most severe abiotic stresses in plants worldwide. is a model plant for legumes and analysis of its response to salt stress is helpful for providing valuable insights into breeding. However, few studies have focused on illustrating the whole-transcriptome molecular mechanism underlying salt stress response in .
View Article and Find Full Text PDFSubmergence-induced leaf senescence may alter chlorophyll metabolism. The objective of this study was to characterize chlorophyll biosynthesis and degradation in contrasting perennial ryegrass (Lolium perenne) in response to submergence stress and recovery. The light-green and fast-growing accession PI238938 and the darker-green and slow-growing cultivar BrightStar SLT were exposed to 0, 6 h, 1-, 3-, and 7-d of submergence stress and 1- and 5- d of de-submergence, respectively.
View Article and Find Full Text PDFIn plant cells, the nucleus DNA is considered the primary site of injury by the space environment, which could generate genetic alteration. As the part of genomic mutation, genetic variation in the promoter region could regulate gene expression. In the study, it is observed that there is a deletion in the upstream regulatory region of the gene () of dwarf mutant and the transcript abundance is lower in the dwarf mutant.
View Article and Find Full Text PDFKentucky bluegrass (Poa pratensis L.) is a major cool-season turfgrass requiring frequent mowing. Utilization of cultivars with slow growth is a promising method to decrease mowing frequency.
View Article and Find Full Text PDFJapanese lawngrass (Zoysia japonica Steud.) is an important warm-season turfgrass that is able to survive in a range of soils, from infertile sands to clays, and to grow well under saline conditions. However, little is known about the molecular mechanisms involved in its resistance to salt stress.
View Article and Find Full Text PDFZhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
August 2014
Rhoptry proteins are the major virulence factors of Toxoplasma gondii. They locate in different parts of the host cells, and can affect the membrane, cytoskeleton structure and active factors of the host cells, so as to block the cell intrinsic defense mechanisms of the host, and let T. gondii invade, parasitize and proliferate in the host successfully.
View Article and Find Full Text PDFPhys Chem Chem Phys
January 2010
The electronic structure of Ti-substituted hydroxyapatite is investigated using density functional theory within a periodic slab model. Two sorption mechanisms have been considered: i.e.
View Article and Find Full Text PDF