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Vivekanandhan P, Alahmadi TA, Ansari MJ, Subala SP. Biocontrol efficacy of cajeput oil against Anopheles stephensi L. mosquito and its effect on non-target species. Front Physiol 2024; 15:1357411. [PMID: 38496298 PMCID: PMC10941012 DOI: 10.3389/fphys.2024.1357411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 02/19/2024] [Indexed: 03/19/2024] Open
Abstract
Chemical insecticides are effective at controlling mosquito populations, but their excessive use can pollute the environment and harm non-target organisms. Mosquitoes can also develop resistance to these chemicals over time, which makes long-term mosquito control efforts challenging. In this study, we assessed the phytochemical, biochemical, and insecticidal properties of the chemical constituents of cajeput oil. Results show that Melaleuca cajuputi essential oil may exhibit mosquito larvicidal properties against Anopheles stephensi larvae (second-fourth instar) at 24 h post-treatment. At 24 h post-exposure, the essential oil resulted in a significant decrease in detoxifying enzymes. All of these findings indicate that cajeput oil infects An. stephensi larvae directly affect the immune system, leading to decreased immune function. Cajeput oil significantly affects the second, third, and fourth instar larvae of An. stephensi, according to the bioassay results. Cajeput oil does not induce toxicity in non-target Eudrilus eugeniae earthworm species, as indicated by a histological study of earthworms. Phytochemical screening and GC-MS analysis of the essential oil revealed the presence of several major phytochemicals that contribute to mosquito larvicidal activity. The importance of cajeput oil as an effective candidate for biological control of the malarial vector An. stephensi is supported by this study.
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Affiliation(s)
- Perumal Vivekanandhan
- Department of General Pathology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, India
| | - Tahani Awad Alahmadi
- Department of Pediatrics, College of Medicine and King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia
| | - Mohammad Javed Ansari
- Department of Botany, Hindu College Moradabad (Mahatma Jyotiba Phule Rohilkhand University Bareilly), Moradabad, India
| | - S. P. Subala
- Department of Biotechnology, Ayya Nadar Janaki Ammal College (Autonomous), Sivakasi, India
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Fuller ID, de Lange PJ, Burgess EJ, Sansom CE, van Klink JW, Perry NB. Chemical diversity of kānuka: Inter- and intraspecific variation of foliage terpenes and flavanones of Kunzea (Myrtaceae) in Aotearoa/New Zealand. PHYTOCHEMISTRY 2022; 196:113098. [PMID: 35051785 DOI: 10.1016/j.phytochem.2022.113098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 01/09/2022] [Accepted: 01/11/2022] [Indexed: 06/14/2023]
Abstract
Kunzea (Myrtaceae) trees and shrubs, generally called kānuka, grow across most of Aotearoa/New Zealand (NZ). With the exception of K. sinclairii, an offshore island endemic, kānuka had been treated as an Australasian species K. ericoides. However, a 2014 taxonomic revision recognized ten species, all endemic to NZ. Kānuka chemistry is less studied than that of its closest relative in NZ, mānuka (Leptospermum scoparium), which shows very distinct regional foliage chemotypes. We have used a miniaturized method with GC and 1H NMR to analyze foliage chemistry of voucher specimens from across the geographic ranges of the ten NZ Kunzea species. We found common mono- and sesquiterpenes, with α-pinene dominant in all samples, but only traces of antimicrobial triketones. Two unusual flavanones, with unsubstituted B-rings and known bioactivity against Phytophthora, did distinguish some of the samples. 5,7-Dihydroxy-6,8-dimethyl flavanone was only found at high concentrations in the three K. sinclairii samples in this study's sample set, but this compound has separately been reported in K. robusta samples from a nearby region. Therefore none of the NZ Kunzea species was distinguished by the chemistry analyzed in this study, but there is a possibility of regional flavonoid chemotypes cutting across the species boundaries.
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Affiliation(s)
- Ioan D Fuller
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand
| | - Peter J de Lange
- Department of Environmental and Animal Sciences, UNITEC, Auckland, New Zealand
| | - Elaine J Burgess
- The New Zealand Institute for Plant and Food Research Limited, Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand
| | - Catherine E Sansom
- The New Zealand Institute for Plant and Food Research Limited, Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand
| | - John W van Klink
- The New Zealand Institute for Plant and Food Research Limited, Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand
| | - Nigel B Perry
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand; The New Zealand Institute for Plant and Food Research Limited, Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand.
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Bida MR, Dominguez J, Jones Miguel D, Guerrero A, Pagano T. Essential oil compounds from the leaf of Eugenia samanensis Alain (Myrtaceae), a species endemic to the Samaná Peninsula, Dominican Republic. JOURNAL OF ESSENTIAL OIL RESEARCH 2018. [DOI: 10.1080/10412905.2018.1518275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Morgan R. Bida
- Laboratory Science Technology Program, Department of Science and Mathematics, Rochester Institute of Technology/National Technical Institute for the Deaf, Rochester, NY, USA
| | - Jonathan Dominguez
- Laboratory Science Technology Program, Department of Science and Mathematics, Rochester Institute of Technology/National Technical Institute for the Deaf, Rochester, NY, USA
| | - Dalia Jones Miguel
- Facultad de Ciencias, Escuela de Biología, Universidad Autónoma de Santo Domingo, Santo Domingo, República Dominicana
| | - Angela Guerrero
- Facultad de Ciencias, Escuela de Biología, Universidad Autónoma de Santo Domingo, Santo Domingo, República Dominicana
| | - Todd Pagano
- Laboratory Science Technology Program, Department of Science and Mathematics, Rochester Institute of Technology/National Technical Institute for the Deaf, Rochester, NY, USA
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Coulerie P, Poullain C. New Caledonia: A ' Hot Spot' for Valuable Chemodiversity: Part 2: Basal Angiosperms and Eudicot Rosids. Chem Biodivers 2016; 13:18-36. [PMID: 26765350 DOI: 10.1002/cbdv.201400389] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 01/13/2015] [Indexed: 11/07/2022]
Abstract
The flora of New Caledonia encompasses more than 3000 plant species and almost 80% are endemic. New Caledonia is considered as a 'hot spot' for biodiversity. With the current global loss of biodiversity and the fact that several drugs and pesticides become obsolete, there is an urgent need to increase sampling and research on new natural products. In this context, we review the chemical knowledge available on New Caledonian native flora from economical perspectives. We expect that a better knowledge of the economic potential of plant chemistry will encourage the plantation of native plants for the development of a sustainable economy which will participate in the conservation of biodiversity. In the second part of this review, we focus on the results exposed in 60 scientific articles and describe the identification of 225 original compounds from basal angiosperms and eudicot rosids. We discuss the economic potential of plants and molecules from medicinal and industrial perspectives. This review also highlights several plants and groups, such as Amborella sp., Piperaceae, or Phyllanthaceae, that are unexplored in New Caledonia despite their high chemical interest. Those plants are considered to have priority in future chemical investigations.
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Affiliation(s)
- Paul Coulerie
- Institut Agronomique néo-Calédonien, Connaissance et Amélioration des Agrosystèmes, BP A5, 98848 Noumea Cedex, New Caledonia. .,School of Pharmaceutical Sciences, University of Geneva, 30, Quai Ernest-Ansermet, CH-1211 Geneva 4, (phone: +41-22-3793409).
| | - Cyril Poullain
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, CNRS, Labex LERMIT, 1 Avenue de la Terrasse, FR-91198 Gif-sur-Yvette Cedex.,Stratoz, 5, Rue de la Baume, FR-75008 Paris
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Brophy JJ, Clarkson JR, Deseo MA, Ford AJ, Lawes DJ, Leach DN. The Leaf Essential Oil of Eugenia reinwardtiana Growing in Australia. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The leaf essential oils of the two chemotypes of Eugenia reinwardtiana (Blume) DC growing in Australia have been investigated. Chemotype 1, isolated in 0.2% yield, w/w, dry weight, contained major amounts of α-pinene (10-26%), limonene (1–15%), β-caryophyllene (0.7–11%), α-humulene (0.9–16%) and bicyclogermacrene (1–23%). The second chemotype, found only on coastal dunes SW of Lockerbie Qld, and isolated in 0.4–0.6% (w/w, dry weight), contained α-pinene (tr −8.5%) β-caryophyllene (12–27%) and α-humulene (1–17%) as the major terpenes. This chemotype also contained the novel aliphatic diketone, 2-butyl-2,4,4-trimethyl-5-methoxycyclohex-5-en-1,3-dione (18–33%), whose structure determination is reported herein.
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Affiliation(s)
- Joseph J. Brophy
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - John R. Clarkson
- Queensland Parks and Wildlife Service PO Box 156 Mareeba, Qld 4880, Australia
| | - Myrna A. Deseo
- Southern Cross Plant Science, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia; Present Address: Biosciences Research, Department of Economic Development, Jobs, Transport and Resources, 5 Ring Road, Bundoora, VIC 3083, Australia
| | - Andrew J. Ford
- CSIRO Land and Water Flagship, Tropical Forest Research Centre, PO Box 780, Atherton, Qld 4883 Australia
| | - Douglas J. Lawes
- Mark Wainwright Analytical Centre, University of New South Wales, Sydney, NSW 2052, Australia
| | - David N. Leach
- Southern Cross Plant Science, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia; Present Address: University of Western Sydney, Faculty of Health and Science, Locked Bag 1797, Penrith 2751, NSW, Australia
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