Seed priming with silicon (Si) is an efficient and easy method to regulate plant tolerance against different abiotic stresses. A pot experiment was conducted examine the Si-mediated changes in oxidative defense some vital physio-biochemical parameters of maize under a limited water supply. For this purpose, two varieties (Pearl Malka) Si treatments (0, 4 mM, 6 mM) were grown control 60% field capacity for three weeks. At capacity, significant reductions growth attributes chlorophyll contents...

Terpenes are the major secondary metabolites produced by plants, and have diverse industrial applications as pharmaceuticals, fragrance, solvents, biofuels. Cyanobacteria equipped with efficient carbon fixation mechanism, ideal cell factories to produce various fuel chemical products. Past efforts terpenes in photosynthetic organisms gained only limited success. Here we engineered cyanobacterium Synechococcus elongatus PCC 7942 efficiently limonene through modeling guided study....

Cinnamyl alcohol dehydrogenase (CAD) is a key enzyme in lignin biosynthesis. However, little was known about CADs melon. Five CAD-like genes were identified the genome of melons, namely CmCAD1 to CmCAD5. The signal peptides analysis and CAD proteins prediction showed no typical found all CmCADs CmCAD may locate cytoplasm. Multiple alignments implied that some motifs be responsible for high specificity these proteins, one residues catalytic mechanism. phylogenetic tree revealed seven groups...

As an important plant growth regulator, the role of γ-aminobutyric acid (GABA) in regulating seeds germination was less well elucidated under water stress. The present study conducted to investigate impact GABA pretreatment on white clover (Trifolium repens) deficient condition. Results demonstrated that pretreated with 2μmol/l significantly alleviated decreases endogenous content, percentage, potential, index, root length, and fresh weight along marked reduction mean time after 7days...

Internal phosphorus (P) loading is a key driver of waterbody eutrophication. Various sediment P indexes are developed to assess risks by linking them water column P, but their seasonal reliability remains underexplored. This study evaluated, for the first time, status in Xiashan reservoir, large shallow reservoir northern China serving 9.4 million people. The ability three indexes, including exchangeable (Ex-P), Olsen (Olsen-P), and diluted HCl-extractable (HCl-P), predict concentrations was...

A study was conducted to characterize the effects of dietary oxidized fish oil on growth performance, immunity and antioxidant status genetically improved farmed tilapia (Oreochromis niloticus) determine role ferulic acid oxidative damage induced by oil. The (13.73 ± 0.31 g) were fed four experimental diets containing untreated (peroxide value, POV: 2.2 meq/kg) highly (POV: 120.6 either with or without (0 400 mg/kg) supplementation for 12 weeks. From results, treatments increased enzyme...

To evaluate atrazine (2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine) ecotoxicology in soil, the effect of on activity antioxidative enzymes (superoxide dismutase [SOD], catalase [CAT], and guaiacol peroxidase [POD]) was investigated Vicia faba roots. Tissues from each treatment were collected days 7, 14, 21, 28. Compared with controls, SOD V. roots stimulated by 2.5 mg/kg inhibited 5 10 treatments, CAT POD activities whole. The Olive tail moments single-cell gel electrophoresis root...

Proper branching and successful reproductive growth is of great importance for rice productivity. Substantial progress has been made in uncovering the molecular mechanisms underlying tillering control spikelet sterility. However, developmentally controlled, how it regulated coordinately with remains unclear. This study characterized a mutant, most obvious phenotypes which are high tillering, reduced height, infertile spikelets (named this1). Similarly to tiller number dwarf mutants rice,...

Abstract Application of controlled-release urea (CRU) improves crop yield and nitrogen use efficiency (NUE) compared with conventional urea. However, the effectiveness CRU differs fertilization placement. A two site-year field experiment was carried out in fluvo-aquic soil central China to study effects N sources (CRU urea) three placements (band application between corn rows at 0, 5, 15 cm depths) on fresh ear NUE sweet corn. The inorganic (NO 3 − -N NH 4 + -N) concentrations layers 0–20...

An 8-week growth experiment was conducted to quantify the appropriate dietary vitamin C requirement of juvenile Chinese sucker (Myxocyprinus asiaticus). Triplicate groups 30 experimental fish [initial body weight: (7.1 ± 0.3) g] were cultured in 500 L aquaria and fed with semi-purified diets containing six levels [10.1 (unsupplemented diet), 37.4, 64.9, 125.2, 244.2 482.0 mg kg−1 diet, respectively] (supplied as L-ascorbyl-2-polyphosphate). Results showed that weight gain significantly...

This study aimed to evaluate the effects of Mosla chinensis extract (MCE) on broiler intestinal health. A total 240 1-day-old Arbor Acres (AA) broilers (balanced for sex) were randomly allocated into four treatment groups, each with six replicates 10 chickens. The comprised a starter phase (days 1-21) and grower 22-42). control group (C) received basal diet, while experimental groups supplemented low (S1, 500 mg/kg), medium (S2, 1000 high doses (S3, 2000 mg/kg) MCE. results showed that MCE...

The effects of luteolin on phenoloxidase (PO) from Spodoptera exigua larvae were investigated with the use a microtitration assay in present paper. results showed that could inhibit activity PO and concentration this inhibitor led to 50% (IC50) reduction was estimated be 0.47 mmol/l. inhibitory kinetics analyzed by Lineweaver–Burk plots compound found reversible competitive Ki 13.11 obviously toxic against (≤3rd instar) exigua. highest percentage older (≥3rd greater than 60% treatment....

Glyphosate-resistant crops developed by the CP4-EPSPS gene from Agrobacterium have been planted on a massive scale globally, which benefits high efficiency and broad spectrum of glyphosate in weed control. Some glyphosate-resistant (GR) genes microbes reported, might raise biosafety concerns. Most them were obtained through hygromycin-HPT transformation system. Here we reported plant source with 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) goosegrass endowed rice resistance to...

Abstract The effects of freeze‐drying (FD), vacuum microwave drying after (FD‐VMD), and (VMD‐FD) on the physicochemical properties, phenolic compounds, antioxidant capacity pear fruit slices were investigated. results showed that FD samples had highest crispness value (116.30 N·sec) lowest volume shrinkage ratio (5.48%). Compared to FD, VMD‐FD FD‐VMD methods could save time without affecting color dried samples. rehydration maintained a homogeneous porous structure, while obvious collapse....

This study was conducted to investigate the drought tolerance and initial mechanism of Capparis spinosa L suspension cell water stress. The callus inoculated in liquid Murashige Skoog medium contained 0 15% (m/v) polyethylene glycol (PEG 8000) physiological index were assessed. result indicated that stress led hydrogen peroxide accumulation more than control which activities peroxidase (POD) increased at low-concentration PEG treatment then greatly declined. soluble sugar followed same...