Effect of 4-chloro-2-methylphenoxy acetic acid on tomato gene expression and rhizosphere bacterial communities under inoculation with phosphate-solubilizing bacteria

Zhang, Jian; Guo, Tingting; Xiao, Qing; Wang, Pengcheng; Tian, Hongmei

doi:10.1016/j.jhazmat.2021.125767

Cited by 12 publications

(5 citation statements)

References 79 publications

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“…Afterwards, mycelium fragments were removed with three layers of sterile cheesecloth to obtain the spore suspensions. Fi-nally, the filtrate was diluted with sterile water and the spore concentration was measured by a hemocytometer and adjusted to 10 7 CFU/mL [18,22].…”

Section: Fap Pg and Fungal Strains Preparationmentioning

confidence: 99%

“…Phosphate-solubilizing microorganisms (PSMs) can improve the dissolution of insoluble phosphates (IPs) [17,20,21]. Compared with other PSMs (e.g., bacteria), phosphatesolubilizing fungi (PSF) have shown a stronger ability (~10 times) for P release from IPs in solid and liquid media [22,23]. Additionally, PSF has a high tolerance for Pb toxicity [10,21].…”

Section: Introductionmentioning

confidence: 99%

“…Oxalic acid is the primary organic acid secreted by PSF [24,25]. Compared with other organic acids, oxalic acid has the highest acidity constant (pKa1 = 1.25 and pKa2 = 4.27), which can significantly decrease the medium pH and dissolve IPs [22]. On top of its strong chemical acidity (e.g., compared to sulfuric acid), oxalic acid is more efficient for the solubilization of rock phosphate [26].…”

Section: Introductionmentioning

confidence: 99%

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Remediation of Lead Contamination by Aspergillus niger and Phosphate Rocks under Different Nitrogen Sources

Feng

Zhang

et al. 2022

Agronomy

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Co-application of Aspergillus niger (A. niger) and phosphate rocks (PR) has been practiced by environmentalists for lead (Pb) remediation. The secretion of organic acid by A. niger usually dominates the dissolution of PR and Pb immobilization. In this study, two types of PR (fluorapatite (FAp) and phosphogypsum (PG)) were investigated in Pb remediation by A. niger under three different forms of nitrogen (ammonium, nitrate, and urea). Our results reveal that the formation of pyromorphite and lead oxalate contributed to Pb removal by the combination of A. niger with FAp and PG. PG showed a significant capability for Pb remediation compared with FAP, over 94% of Pb vs. 50%. Compared with nitrate and urea, ammonium significantly decreased Pb cation concentrations from 1500 mg/L to 0.4 mg/L. Due to ammonium containing sulfate, the lead sulfate formed also contributed to Pb removal. However, nitrate stimulated A. niger to secrete more oxalic acid (~1400 mg/L) than ammonium and urea (~200 mg/L), which can form insoluble lead oxalate. These insoluble minerals can reduce the availability of removed Pb. Despite the efficacy of both ammonium and nitrate for Pb remediation, our findings suggest that nitrate is the primary candidate in this regard due to high oxalic acid secretion.

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Section: Fap Pg and Fungal Strains Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Remediation of Lead Contamination by Aspergillus niger and Phosphate Rocks under Different Nitrogen Sources

Feng

Zhang

et al. 2022

Agronomy

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“…14 Zhang et al also showed that 4chloro-2-methylphenoxy acetic acid (MCPA) treatment greatly decreased the ABA and JA content in tomato roots and inhibited plant growth. 15 Moreover, nontargeted metabolomics research revealed that exposure to triazine and sulfonylurea herbicides may alter the levels of amino acids, phytohormones, lipids, and secondary metabolites. This metabolic reprogramming might have a substantial effect on the quality and quantity of food.…”

Section: ■ Introductionmentioning

confidence: 99%

Bensulfuron-Methyl, Terbutylazine, and 2,4-D Butylate Disturb Plant Growth and Resistance by Deteriorating Rhizosphere Environment and Plant Secondary Metabolism in Wheat Seedlings

Zhou

Cheng

et al. 2022

J. Agric. Food Chem.

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Frequent and improper use of herbicides disrupts a plant's metabolism, causing oxidative stress that degrades crop quality. However, few studies have examined the inhibitory effects of herbicides on plant growth and defense mechanisms in terms of their impact on soil quality and crop rhizosphere. Therefore, the current study investigated the detrimental impacts of six typical and multilevel herbicides on the microbial community and signal molecules in the soil as well as on the levels of hormones and secondary metabolites in wheat seedlings. Interestingly, bensulfuron-methyl, terbutylazine (TBA), and 2,4-D butylate significantly induced oxidative damage while reducing the number of phytohormones (salicylic acid and jasmonic acid) and secondary metabolites (tricin, quercetin, and caffeic acid) in the roots and leaves compared with the controls, isoproturon, fenoxaprop-p-ethyl, and pretilachlor. At twice the recommended levels (2×), they also decreased the microbial α diversity and, in particular, the abundance of Gammaproteobacteria, Alphaproteobacteria, Actinobacteria, Bacteroidia, Verrucomicrobia, Bacilli, Acidimicrobiia, Deltaproteobacteria, and Gemmatimonadetes by disrupting the level of enzymes (e.g., urease and sucrase) and metabolites (indole-3-acetic acid, salicylic acid, apigenin, 4-hydroxybenzoic acid, DIMBOA, and melatonin) in the rhizosphere soil. Overall, significant exposure to herbicides may inhibit wheat growth by disturbing the microbial composition in the rhizosphere soil and the distribution of secondary metabolites in wheat seedlings.

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“…Soil microbes play a vital role in regulating soil P dynamics and bioavailability ( Chen H. M. et al, 2019 ; Lai et al, 2022 ), especially in organic P mineralization ( Weihrauch and Opp, 2018 ), as well as in influencing P uptake by plants ( Zhang et al, 2021 ). Not only is it possible that manure application may alter soil P pools, but it may also shape the constitution of the soil microbial community ( Sun et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Substitution of manure for mineral P fertilizers increases P availability by enhancing microbial potential for organic P mineralization in greenhouse soil

Sun

Niu

Luo

et al. 2022

Front. Bioeng. Biotechnol.

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The shortage of phosphorus (P) as a resource represents a major challenge for the sustainable development of agriculture. Manure has a high P content and is a potential substitute for mineral P fertilizers. However, little is known about the effects on soil P availability and soil microbial P transformation of substituting manure for mineral P fertilizers. In this study, variations in soil P availability and bacterial P mobilization were evaluated under treatment with manure as compared to mineral P fertilizers. In the greenhouse fruit and vegetable production system that provided the setting for the study, substitution of manure for mineral P (PoR treatment) resulted in a similar level of soil total P and a similar fruit and vegetable yield as compared to traditional fertilization, but a significantly increased level of soil available P. In addition, PoR treatment enhanced bacterial organic P mineralization potential and decreased inorganic P dissolution potential. These results demonstrate that manure application increases the availability of soil P primarily by enhancing soil microbial Po mineralization, indicating the potential feasibility of applying manure instead of mineral P fertilizers in greenhouse farming.

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Effect of 4-chloro-2-methylphenoxy acetic acid on tomato gene expression and rhizosphere bacterial communities under inoculation with phosphate-solubilizing bacteria

Cited by 12 publications

References 79 publications

Remediation of Lead Contamination by Aspergillus niger and Phosphate Rocks under Different Nitrogen Sources

Remediation of Lead Contamination by Aspergillus niger and Phosphate Rocks under Different Nitrogen Sources

Bensulfuron-Methyl, Terbutylazine, and 2,4-D Butylate Disturb Plant Growth and Resistance by Deteriorating Rhizosphere Environment and Plant Secondary Metabolism in Wheat Seedlings

Substitution of manure for mineral P fertilizers increases P availability by enhancing microbial potential for organic P mineralization in greenhouse soil

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