» Articles » PMID: 30979925

Co-application of ACC-deaminase Producing PGPR and Timber-waste Biochar Improves Pigments Formation, Growth and Yield of Wheat Under Drought Stress

Overview
Journal Sci Rep
Specialty Science
Date 2019 Apr 14
PMID 30979925
Citations 57
Authors
Affiliations
Soon will be listed here.
Abstract

Besides other deleterious effects, drought elevates ethylene level too in plants. Increased ethylene concentration reduces root elongation and development that consequently retard plant growth and yield. There are certain PGPR which produce ACC-deaminase. The ACC-deaminase converts ACC (an immediate precursor of ethylene biosynthesis in methionine pathway in higher plants) into ammonia and α-ketobutyrate instead of ethylene. Regularization of ethylene level in plants mitigate the effects of drought. On the other hand, biochar has been reported to be rich in nutrients and exhibiting higher water holding capacity. So, a pot study was conducted with the hypothesis that the combined application of ACC-deaminase producing PGPR and biochar would minimize the drought effects on wheat growth. The ACC-deaminase producing PGPR were applied on wheat seeds in combination with two biochar doses. Three moisture levels were maintained throughout the trial. The data obtained revealed that B. amyloliquefaciens + 2BC improved the chlorophyll a, chlorophyll b, photosynthetic rate, transpiration rate, 100-grain weight, and grain N, P and K up to 114%, 123%, 118%, 73%, 59%, 58%, 18% and 23%, respectively, under drought conditions. It is concluded that co-application of PGPR and biochar is an effective technique to mitigate the drought effects.

Citing Articles

Enhancing wheat growth under chromium toxicity using gibberellic acid and microbial inoculants as modulating agents.

Sarwar G, Fatima M, Danish S, Alharbi S, Javed Ansari M, Alarfaj A Sci Rep. 2025; 15(1):8356.

PMID: 40069275 PMC: 11897154. DOI: 10.1038/s41598-025-92828-6.


Synergistic Role of Composite Inoculants in Mitigating Wheat Drought Stress Under Field Conditions.

Shan H, Wen H, Zhang J, Wang Y, Lu L, Liu Y Plants (Basel). 2025; 14(3).

PMID: 39942929 PMC: 11820025. DOI: 10.3390/plants14030366.


Dissection of QTLs underlying the genetic basis of drought resistance in wheat: a meta-analysis.

Shakir A, Geng M, Tian J, Wang R Theor Appl Genet. 2025; 138(1):25.

PMID: 39786445 DOI: 10.1007/s00122-024-04811-w.


Enhancing maize drought and heat tolerance: single vs combined plant growth promoting rhizobacterial inoculation.

Notununu I, Moleleki L, Roopnarain A, Adeleke R Front Plant Sci. 2024; 15:1480718.

PMID: 39719935 PMC: 11667205. DOI: 10.3389/fpls.2024.1480718.


Characterization of G124 and Its Promoting Role in Plant Growth and Drought Tolerance.

Ma X, Zhang B, Xiang X, Li W, Li J, Li Y Plants (Basel). 2024; 13(20).

PMID: 39458811 PMC: 11511372. DOI: 10.3390/plants13202864.


References
1.
Ahmad I, Akhtar M, Zahir Z, Naveed M, Mitter B, Sessitsch A . Cadmium-tolerant bacteria induce metal stress tolerance in cereals. Environ Sci Pollut Res Int. 2014; 21(18):11054-65. DOI: 10.1007/s11356-014-3010-9. View

2.
Sobeih W, Dodd I, Bacon M, Grierson D, Davies W . Long-distance signals regulating stomatal conductance and leaf growth in tomato (Lycopersicon esculentum) plants subjected to partial root-zone drying. J Exp Bot. 2004; 55(407):2353-63. DOI: 10.1093/jxb/erh204. View

3.
Niu X, Song L, Xiao Y, Ge W . Drought-Tolerant Plant Growth-Promoting Rhizobacteria Associated with Foxtail Millet in a Semi-arid Agroecosystem and Their Potential in Alleviating Drought Stress. Front Microbiol. 2018; 8:2580. PMC: 5771373. DOI: 10.3389/fmicb.2017.02580. View

4.
Saikia J, Sarma R, Dhandia R, Yadav A, Bharali R, Gupta V . Alleviation of drought stress in pulse crops with ACC deaminase producing rhizobacteria isolated from acidic soil of Northeast India. Sci Rep. 2018; 8(1):3560. PMC: 5824784. DOI: 10.1038/s41598-018-21921-w. View

5.
Glickmann E, Dessaux Y . A critical examination of the specificity of the salkowski reagent for indolic compounds produced by phytopathogenic bacteria. Appl Environ Microbiol. 1995; 61(2):793-6. PMC: 1388360. DOI: 10.1128/aem.61.2.793-796.1995. View