دورية أكاديمية
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Mineral Solubilizing Rhizobacterial Strains Mediated Biostimulation of Rhodes Grass Seedlings.

التفاصيل البيبلوغرافية
العنوان: Mineral Solubilizing Rhizobacterial Strains Mediated Biostimulation of Rhodes Grass Seedlings.
المؤلفون: Javaid S; Institute of Molecular Biology and Biotechnology, The University of Lahore Main Campus, Lahore 54000, Pakistan., Mushtaq S; Institute of Molecular Biology and Biotechnology, The University of Lahore Main Campus, Lahore 54000, Pakistan., Mumtaz MZ; Institute of Molecular Biology and Biotechnology, The University of Lahore Main Campus, Lahore 54000, Pakistan., Rasool G; Institute of Molecular Biology and Biotechnology, The University of Lahore Main Campus, Lahore 54000, Pakistan., Naqqash T; Institute of Molecular Biology and Biotechnology, Bahauddin Zakariya University, Multan 60800, Pakistan., Afzal M; Institute of Molecular Biology and Biotechnology, The University of Lahore Main Campus, Lahore 54000, Pakistan., Mushtaq U; Institute of Molecular Biology and Biotechnology, The University of Lahore Main Campus, Lahore 54000, Pakistan., Ali HM; Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia., Akhtar MF; Department of Soil Science, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan., Abbas G; Centre for Climate Research and Development, COMSATS University Islamabad, Islamabad 45550, Pakistan., Li L; College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China.; State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China.
المصدر: Microorganisms [Microorganisms] 2023 Oct 12; Vol. 11 (10). Date of Electronic Publication: 2023 Oct 12.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: MDPI AG Country of Publication: Switzerland NLM ID: 101625893 Publication Model: Electronic Cited Medium: Print ISSN: 2076-2607 (Print) Linking ISSN: 20762607 NLM ISO Abbreviation: Microorganisms Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: Basel, Switzerland : MDPI AG, [2013]-
مستخلص: Minerals play a dynamic role in plant growth and development. However, most of these mineral nutrients are unavailable to plants due to their presence in fixed forms, which causes significant losses in crop production. An effective strategy to overcome this challenge is using mineral solubilizing bacteria, which can convert insoluble forms of minerals into soluble ones that plants can quickly assimilate, thus enhancing their availability in nutrient-depleted soils. The main objective of the present study was to isolate and characterize mineral solubilizing rhizobacteria and to assess their plant growth-promoting potential for Rhodes grass. Twenty-five rhizobacterial strains were isolated on a nutrient agar medium. They were characterized for solubilization of insoluble minerals (phosphate, potassium, zinc, and manganese), indole acetic acid production, enzymatic activities, and various morphological traits. The selected strains were also evaluated for their potential to promote the growth of Rhodes grass seedlings. Among tested strains, eight strains demonstrated strong qualitative and quantitative solubilization of insoluble phosphate. Strain MS2 reported the highest phosphate solubilization index, phosphate solubilization efficiency, available phosphorus concentration, and reduction in medium pH. Among tested strains, 75% were positive for zinc and manganese solubilization, and 37.5% were positive for potassium solubilization. Strain MS2 demonstrated the highest quantitative manganese solubilization, while strains MS7 and SM4 reported the highest solubilization of zinc and potassium through acidifying their respective media. The strain SM4 demonstrated the most increased IAA production in the presence and absence of L-tryptophan. The majority of strains were positive for various enzymes, including urease, catalase protease, and amylase activities. However, these strains were negative for coagulase activity except strains SM7 and MS7. Based on 16S rRNA gene sequencing, six strains, namely, SM2, SM4, SM5, MS1, MS2, and MS4, were identified as Bacillus cereus , while strains SM7 and MS7 were identified as Staphylococcus saprophyticus and Staphylococcus haemolyticus . These strains significantly improved growth attributes of Rhodes grass, such as root length, shoot length, and root and shoot fresh and dry biomasses compared to the uninoculated control group. The present study highlights the significance of mineral solubilizing and enzyme-producing rhizobacterial strains as potential bioinoculants to enhance Rhodes grass growth under mineral-deficient conditions sustainably.
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فهرسة مساهمة: Keywords: Bacillus; Chloris gayana; Staphylococcus; enzymatic activities; mineral solubilization; partial gene sequencing
تواريخ الأحداث: Date Created: 20231028 Latest Revision: 20231030
رمز التحديث: 20231030
مُعرف محوري في PubMed: PMC10609362
DOI: 10.3390/microorganisms11102543
PMID: 37894201
قاعدة البيانات: MEDLINE
الوصف
تدمد:2076-2607
DOI:10.3390/microorganisms11102543