Reducing chemical fertilizers in combination with bio-organic can limit the use of while maintaining soil fertility. However, effects combined fertilization on properties, microbial community structure, and crop yield quality are unknown. Using high-throughput sequencing, we conducted field experiments using lettuce plants subjected to five treatments: fertilizer conventional rate (CK), reduction by 30% + 6,000 kg ha-1 (T1), 9,000 (T2), 40% (T3), (T4). Compared CK, T1-T4 had significantly...

5-Aminolevulinic acid (ALA) is a common precursor of tetrapyrroles as well crucial growth regulator in higher plants. ALA has been proven to be effective improving photosynthesis and alleviating the adverse effects various abiotic stresses However, little known about mechanism ameliorating plant under stress. In this paper, we studied exogenous on salinity-induced damages cucumber (Cucumis sativus L.) seedlings. We found that morphology (plant height, leave area), light utilization capacity...

Melatonin (Mel), a powerful antioxidant that has the ability to regulate physiological and biochemical processes in plants under abiotic stresses. However, its roles pesticide detoxification is poorly understood. Herein, selecting leaf spraying insecticide imidacloprid (IMD) as model, we demonstrated mechanism underlying root pretreatment of Mel on IMD cucumber. treatment affected primary light conversion efficiency photosystem II (Fv/Fm), reduced quantum yield, increased hydrogen peroxide...

5-Aminolevulinic acid (ALA) plays an important role in plant growth and development. It can also be used to enhance crop resistance environmental stresses improve the color internal quality of fruits. However, there are limited reports regarding effects ALA on tomato fruit its regulatory mechanisms. Therefore, this study, exogenous coloration fruits were examined. Tomato (Solanum lycopersicum "Yuanwei No. 1") surfaces treated with different concentrations (0, 100, 200 mg⋅L-1) 24th day after...

Light is an important environmental factor that regulates the activity of metabolism-related biochemical pathways during tomato maturation. Using LED to improve lighting conditions process growth and development a feasible efficient method quality fruit. In this study, red blue LEDs were used supplement light on "MicroTom" plants for different periods time in morning evening, differences between primary secondary metabolites other nutrient fruit analyzed using liquid chromatography mass...

Using high-throughput sequencing, this study aimed to explore the response of soil microbial community and Chinese baby cabbage yield reduction chemical fertilizers combined with bio-organic fertilizer. Our experiments consisted conventional fertilizer (CK), 30% + 6,000 kg/ha (T1), 9,000 (T2), 40% (T3), (T4). Compared CK, diversity richness were higher for all treatments added Principle coordinate analysis (PCoA) showed that bacterial fungal communities in T2 T4 similar each other....

Nitric oxide (NO) acts an essential signaling molecule that is involved in regulating various physiological and biochemical processes plants. However, whether S-nitrosylation a crucial molecular mechanism of NO still largely unknown. In this study, 50 μM S-nitrosoglutathione (GSNO) treatment was found to have maximum biological effect on promoting adventitious rooting cucumber. Meanwhile, removal endogenous significantly inhibited the development roots implying responsible for process...

Brassinolide (BR), as a new type of plant hormones, is involved in the processes growth and stress response. Previous studies have reported roles BR regulating developmental also response tolerance to abiotic stresses plants. The main purpose our study was explore whether nitric oxide (NO) plays role process BR-induced adventitious root formation cucumber (Cucumis sativus L.).

Intensive greenhouse vegetable cultivation aggravates continuous cropping, resulting in disturbance of the microbial community structure and diversity soil matrix. In this study, we evaluated rhizosphere matrix fungi rotation cropping systems by using high-throughput sequencing analysis substrates under 6-year tomato with cabbage, bean, or celery pots. The results showed that fungal richness cabbage treatment (B) was significantly lower than other treatments, diversities B bean (D) were...

Melatonin plays key roles in improving fruit quality and yield by regulating various aspects of plant growth. However, the effects how melatonin regulates primary secondary metabolites during growth development are poorly understood. In this study, surfaces tomato were sprayed with different concentrations (0, 50, 100 µmol·L−1) on 20th day after anthesis; we used high-performance liquid chromatography (HPLC) chromatography/mass spectrometry (LC/MS) to determine changes metabolite contents...

Meniscus is a complex and crucial fibrocartilaginous tissue within the knee joint. Meniscal regeneration remains to be scientific translational challenge. We clarified that mesenchymal stem cells (MSCs) participated in meniscal maturation using MSC-tracing transgenic mice model. Here, inspired by natural maturational regenerative process, we developed an effective strategy facilitate three-dimensionally printing biomimetic scaffold combining autologous synovium transplant, which contained...

Supplementary light exposure using light-emitting diodes (LEDs) promotes the growth of tomato plants in greenhouses. Owing to biological clock plants, determining period during which they must be exposed supplementary is essential enhance growth. In this study, we used red and blue LEDs (red:blue = 7:2) as source, determine effects different supplemental periods on photosynthetic characteristics seedlings. Light supplementation morning evening promoted varying degrees, including accumulation...

Tomato fruit are rich in γ-aminobutyric acid (GABA), which lowers blood pressure and improves sleep. An increase GABA content is important for enhancing the nutritional quality of tomato fruit. To investigate effects 5-aminolevulinic (ALA) on synthesis greenhouse tomatoes, cultivar (Solanum lycopersicum cv. '184') was used as an experimental material. During fruit-setting period, root drenching with 0, 10, 50 mg·L-1 ALA, foliar spraying 50, 100 surface 100, 200 ALA were applied. The study...

Normal development of plants is inhibited by inadequate light in winter greenhouses Northwest China. Growth lamps, using light-emitting diodes (LEDs) with red blue (7R2B), were used to supplement daylight for 1, 2, and 3 h. Seedling growth, photosynthesis, photosynthetic product; the Calvin cycle key sugar metabolism-related enzymes their encoding genes; signal sensing regulation gene expression studied greenhouse cucumbers under three treatments determine best supplemental durations enhance...

A biosynthetic precursor of tetrapyrrol, 5-aminolevulinic acid (ALA), is widely used in agricultural production, as an exogenous regulatory substance that effectively regulates plant growth. Previous studies have shown heme and chlorophyll accumulate plants under salt stress, when treated with ALA. In this study, we explored the role plants, by spraying 25 mg L-1 ALA onto leaves cucumber seedlings synthesis inhibitor (2,2'-dipyridyl, DPD) scavenger (hemopexin, Hx), 50 mmol NaCl stress. The...

Soil salinity causes damage to plants and a reduction in output. A natural plant growth regulator, 5-aminolevulinic acid (ALA), has been shown promote under abiotic stress conditions. In the present study, we assessed effects of exogenously applied ALA (25 mg L −1 ) on root architecture Na + distribution cucumber ( Cucumis sativus L.) seedlings moderate NaCl (50 mmol ). The results showed that exogenous improved length, volume, surface area, cell activity tips, which were inhibited salt...

Cadmium (Cd2 +) is among the toxic non-essential heavy metals that adversely affect plants metabolic processes and safety of produce. However, plant hormones can improve plant's tolerance to various stresses. This study investigated effect exogenous abscisic acid (ABA) on biochemical physiological food cadmium +)-sensitive lettuce genotype (Lüsu). Seedlings were subjected five treatments: [(i) Control (untreated plants), (ii) 100 µM CdCl2, (iii) CdCl2+10 µg L-1 ABA (iv) 10 ABA, (v) 0.01 g...

Cinnamic acid (CA), one of the main autotoxins secreted by cucumber roots during continuous cropping, inhibits plant growth and reduces yield. Silicon (Si) is an environmentally friendly element that alleviates abiotic stresses in plants, but mechanism underlying its resistance to autotoxicity remain unclear. Here, we used 0.8 mmol L−1 CA study effects Si application on growth, chlorophyll fluorescence, ascorbate-glutathione (AsA-GSH) cycle seedlings under inducing conditions. Our results...