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Ramesh M, Kavitha K, Rajalakshmi A, Anjukam E, Prabakaran V, Prakash M, Puvanakrishnan R, Ramesh B. 4a-methyl-dodecahydro-1H-pyrrolo[3,4-b]quinoline-6-one produced by Endophytic Fungi Aspergillus niger E12 obtained from Dodonaea viscosa Plant Leaves as a Novel Antibacterial Compound. Appl Biochem Biotechnol 2022; 194:5132-5150. [PMID: 35695951 DOI: 10.1007/s12010-022-03988-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/27/2022] [Indexed: 11/02/2022]
Abstract
Endophytic fungi were isolated from forty plant leaf samples from Gudiyam forest. The potent antibacterial strain Aspergillus niger E12 isolated from the plant Dodonaea viscosa showed maximal antibacterial activity against all the test organisms, viz., Staphylococcus aureus, Bacillus coagulans, Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa. The production of the antibacterial compound was optimized using the yeast extract sucrose medium (2% YES) using response surface methodology (RSM). For the production, the optimal parameters were carbon/nitrogen (C:N) ratio, 9:1; temperature, 25 °C; pH, 5.7; incubation time, 240 h; and rpm, 30. A zone of inhibition of 19.33 mm was observed as maximal bioactivity against Pseudomonas aeruginosa. The antibacterial compound was purified by extraction with ethyl acetate, activity-guided fractionation, and preparative high-performance liquid chromatography (HPLC), gas chromatography-mass spectrometry (GC-MS), Fourier transform infrared (FTIR) spectroscopy, and nuclear magnetic resonance (NMR) studies showed that the Aspergillus niger E12 bioactive substance is 4a-methyl-dodecahydro-1H-pyrrolo [3,4-b] quinoline-6-one.
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Affiliation(s)
- Manickam Ramesh
- Research Department of Biotechnology, Sri Sankara Arts and Science College, Kanchipuram, 631561, Tamil Nadu, India
| | - Kuppuswamy Kavitha
- Research Department of Microbiology, Sri Sankara Arts and Science College, Kanchipuram, 631561, Tamil Nadu, India.,Research Department of Microbiology, Kanchi Shri Krishna College of Arts and Science, Kanchipuram, 631551, Tamil Nadu, India
| | - Arumugam Rajalakshmi
- Research Department of Biotechnology, Sri Sankara Arts and Science College, Kanchipuram, 631561, Tamil Nadu, India
| | - Elamaran Anjukam
- Research Department of Biotechnology, Sri Sankara Arts and Science College, Kanchipuram, 631561, Tamil Nadu, India
| | - Vadivel Prabakaran
- Research Department of Biotechnology, Sri Sankara Arts and Science College, Kanchipuram, 631561, Tamil Nadu, India
| | - Mani Prakash
- Research Department of Microbiology, Kanchi Shri Krishna College of Arts and Science, Kanchipuram, 631551, Tamil Nadu, India
| | - Rengarajulu Puvanakrishnan
- Research Department of Biotechnology, Sri Sankara Arts and Science College, Kanchipuram, 631561, Tamil Nadu, India
| | - Balasubramanian Ramesh
- Research Department of Biotechnology, Sri Sankara Arts and Science College, Kanchipuram, 631561, Tamil Nadu, India.
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Naseer H, Shaukat K, Zahra N, Hafeez MB, Raza A, Nizar M, Qazi MA, Ali Q, A. Al-Huqail A, Siddiqui MH, Ali HM. Appraisal of foliar spray of iron and salicylic acid under artificial magnetism on morpho-physiological attributes of pea (Pisum sativum L.) plants. PLoS One 2022; 17:e0265654. [PMID: 35421099 PMCID: PMC9009661 DOI: 10.1371/journal.pone.0265654] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 03/04/2022] [Indexed: 11/20/2022] Open
Abstract
The appraisal of foliar treatment of iron (Fe) and salicylic acid (SA) on plant under artificial magnetism is very crucial in understanding its impact on growth and development of plants. The present study was designed to document the potential role of Fe and SA on pea (Pisum sativum L.) Matore variety exposed to different magnetism treatments (geomagnetism and artificial magnetism). Thus a pot experiment was conducted using Completely Randomized Design under factorial with three replicates. Various artificial magnetic treatment were applied in pots prior to sowing. Further, 15 days germinated pea seedlings were foliarly supplemented with 250 ppm Fe and 250μM SA, moreover after 20 days of foliar fertilization plants were harvested to analyze and record various morpho-physiological attributes. Data elucidate significant variations in pea plants among different treatments. Artificial magnetism treatments in combination with foliar application of Fe and SA significantly improved various growth attributes (root and shoot length, fresh and dry weights of root and shoot, leaf area), photosynthetic pigments (Chl a, b and carotenoids) and the contents of soluble sugars. However, oxidative stress (H2O2 and MDA) enhanced under different magnetism treatment but foliar application of Fe and SA hampered the production of reactive oxygen species thereby limiting the concentration of H2O2 and MDA in plant tissues. Furthermore the accumulation of nutrients (iron, potassium and nitrate) profoundly increased under artificial magnetism treatment specifically under Fe and SA foliar treatment excluding nitrate where Fe foliar treatment tend to limit nitrate in plant. Consequently, the present research interestingly highlights progressive role of Fe and SA foliar treatment on pea plants under artificial magnetism. Thus, foliar supplementation may be suggested for better growth and development of plants combined with magnetic treatments.
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Affiliation(s)
- Hassan Naseer
- Department of Botany, University of Balochistan, Quetta, Pakistan
| | - Kanval Shaukat
- Department of Botany, University of Balochistan, Quetta, Pakistan
| | - Noreen Zahra
- Department of Botany, University of Agriculture, Faisalabad, Pakistan
| | | | - Ali Raza
- Fujian Provincial Key Laboratory of Crop Molecular and Cell Biology, Oil Crops Research Institute, Center of Legume Crop Genetics and Systems Biology/College of Agriculture, Fujian Agriculture and Forestry University (FAFU), Fuzhou, China
| | - Mereen Nizar
- Department of Botany, University of Balochistan, Quetta, Pakistan
| | | | - Qasim Ali
- Institute of Food and Agriculture Sciences, University of Florida, Gainesville, Florida, United States of America
| | - Asma A. Al-Huqail
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Manzar H. Siddiqui
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Hayssam M. Ali
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
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