Investigation of Phytohormonal Potential of Some Selected Tropical Plants

Okukpe, K. M.; Adeloye, A. A.; Belewu, M. A.; Alli, O. I.; Adeyina, O.A.; Annongu, A.A.

doi:10.3923/rjmp.2012.425.432

Cited by 6 publications

(5 citation statements)

References 18 publications

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“…Methanoilc extract of leaf used in treatment of renal, urinary calculi and urolithiasis (Kumkum and Ranjana 2012). Phytohormonal potential and effect of leaf extract on seed germination and seedling growth shows importance of H. suaveolens in agricultural aspects (Okukpe et al 2012;Boonrod et al 2012). Several studies were performed on the chemical composition and activities of the essential oil.…”

Section: Introductionmentioning

confidence: 98%

Chemical composition and antimicrobial activity of Hyptis suaveolens Poit. seed oil from Uttarakhand State, India

Bachheti

Rai

Joshi

et al. 2015

Orient Pharm Exp Med

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The present study was carried out to identify the chemical composition and antimicrobial activity of Hyptis suaveolens Poit. seed oil from Kalagarh region (Uttarakhand State, India). Gas Chromatograph Mass Spectrum (GC-MS) analysis of the seed oil suggested high amounts (86.96 %) of unsaturated fatty acids: linoleic acid (76.13 %), oleic acid (10.83 %) compared to saturated fatty acids i.e. palmitic acid (6.55 %), stearic acid (4.56 %) and heptacosanoic acid (1.94 %) as the main constituents. The oil (1 mg/ml to 0.125 mg/ml) was detrimental to the growth of bacterial and fungal strains tested. Among them Salmonella typhi MTCC 531 (9.92±0.08 mm), Pseudomonas aeruginosa MTCC 424 (10.22±0.11 mm), Lactobacillus plantarum MTCC 2621 (10.92±0.09 mm) and Candida tropicalis MTCC 229 (8.11 ± 0.07 mm) were susceptible at lower concentration (0.125 %). Escherichia coli MTCC 443, Shigella flexnerii MTCC 1457 and Vibrio vulnificus MTCC 1145 were sensitive only at higher concentrations (0.5 and 1 %) tested. The bioactivity of 1 mg/ml seed oil against C. tropicalis MTCC 229 was comparable to Fluconazole control (25 μg). On the contrary Enterococcus fecalis MTCC 439 and Streptococcus fecalis MTCC 3378 were resistant to the seed oil treatment. Minimum Inhibition Concentrations (MIC) were found to be 0.125 mg/ml for S. typhi, and P. aeruginosa, L. plantarum and C. tropicalis, while it was 0.2 mg/ml for L. leishmanii, S. aureus and C. albicans. The observations indicate that the H. suaveolens seed oil possess appreciable antimicrobial properties against Gram negative bacteria tested and can be further studied for the mode of action and further lead as a natural antibiotic.

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Section: Introductionmentioning

confidence: 98%

Chemical composition and antimicrobial activity of Hyptis suaveolens Poit. seed oil from Uttarakhand State, India

Bachheti

Rai

Joshi

et al. 2015

Orient Pharm Exp Med

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“…Existen otros metabolitos producidos por estos organismos (fuente fitohormonal) que son desconocidos y que podrían mejorar el crecimiento vegetal de manera indirecta. Ciertos metabolitos como flavonoides, alcaloides, compuestos fenólicos, saponinas, oxalatos y fitohormonas han demostrado que tienen la capacidad de afectar el crecimiento celular y desarrollo vegetal (Erb y Kliebenstein, 2020;Okukpe et al, 2012).…”

Section: Resultados Y Discusiónunclassified

Metabolitos con potencial fitohormonal en el cultivo de especies vegetales: aplicaciones en biotecnología

Cortés¹,

Godoy²,

Mora³

2021

Rev E&T

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Existen reguladores de crecimiento o fitohormonas que son utilizadas en los cultivos de especies vegetales In vitro /Ex vitro; actualmente se han descubierto más de 10 grupos de compuestos fitohormonales que se utilizan para acelerar y controlar de manera específica el crecimiento de los organismos vegetales o algunos de sus tejidos. Así mismo, se han estudiado diferentes fuentes de metabolitos con potencial fitohormonal sintéticos y orgánicos, con el fin de ser utilizadas en diferentes procesos biotecnológicos. La búsqueda de nuevas fuentes metabólicas para la producción de reguladores de crecimiento permite mejorar la calidad de la producción de plantas, disminuir costos de producción y obtener mejores productos derivados de ellas como los metabolitos secundarios; el objetivo de esta revisión fue describir el uso de algunas fuentes biológicas de origen vegetal como las lentejas, el agua de coco, el Aloe vera y la miel, además, fuentes de origen microbiológico como las rizobacterias, micorrizas y enterobacterias con capacidad de producción de metabolitos con potencial fitohormonal. Estas fuentes pueden ser utilizadas en diferentes procesos de biotecnología vegetal. También se revisaron algunos microrganismos que pueden actuar como bioestimulantes (bacterias y micorrizas) que tienen potencial para mejorar el crecimiento vegetal. El uso de estas nuevas fuentes metabólicas permitirá facilitar el proceso de producción vegetal In vitro y/o Ex vitro, buscando de esta manera técnicas novedosas que permitan reemplazar los reguladores empleados comúnmente (ácido naftalen-acético; 2,4-D; ácido indol butírico, etc.), que suelen ser costosos y tóxicos para el ambiente por las técnicas utilizadas para su producción.

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“…Several studies mention the nutritional content of nutmeg plants, including carbohydrates, minerals, protein, Vitamin A, Vitamin B, Vitamin C, folic acid, riboflavin, niacin, thiamine, sodium, potassium, calcium, magnesium, phosphorus, zinc, β-Carotene, and β-Cryptoxanthin (Agbogidi & Azagbaekwe, 2013). Okukpe et al (2012) stated that the nutmeg plant contains flavonoids, saponins, and alkaloids, which function as anti-fungal substances.…”

Section: Yeast and Bacteria Isolation From Leaves And Nutmegmentioning

confidence: 99%

The Potential of Nutmeg’s Microbes (Myristica fragrans Houtt.) as Antagonistic Agents against Rigidoporus microporus

Susilowati

Rahayuningsih

Sofiana

et al. 2021

J. Lahan Suboptimal

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This study aimed to obtain yeast and bacteria from Myristica fragrans Houtt., which have the potential to produce chitinase enzymes with antagonistic ability against Rigidoporus microporous. Both microorganisms were extracted from the leaves and fruit of nutmeg. A total of 35 yeast and 29 bacterial isolates were obtained, with different morphological characters. The chitinolytic test was carried out qualitatively, and the parameters observed include the clear zones around the colony. A total of 4 bacterial isolates produced chitinase enzymes (BP 1.2.1, BP 2.1.1, EPBj II.K1, and EPBj II. K2) with a chitinolytic index of 3.92, 5.38, 2.00, and 1.66, respectively. Yeast isolates were negative for chitinase enzymes. The difference in index value indicated a variation in enzyme activity. The antagonist test was carried out using a dual culture method. A total of 1 yeast and 14 bacterial isolates inhibited the growth of R. microporous, and each has a different inhibitory zone. Based on the percentage of inhibition value, the highest percentage occurred in P.K1(41.1%), P. K2 (50%), dan EPBj II. K6 (42.2%). The antagonist test indicator includes the formation of inhibitory zones on the medium. Hemolysis test showed that yeast and bacteria are not able to break down blood cells in the medium. The molecular identification showed that P. K1 and P. K2 isolates were classified as Bacillus subtillis and EPBj II. K6 were identified as Bacillus aerius with 100% sequence homology and 99% bootstrap value respectively. These findings provided information about potential microbes that control white root fungus.

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Investigation of Phytohormonal Potential of Some Selected Tropical Plants

Cited by 6 publications

References 18 publications

Chemical composition and antimicrobial activity of Hyptis suaveolens Poit. seed oil from Uttarakhand State, India

Chemical composition and antimicrobial activity of Hyptis suaveolens Poit. seed oil from Uttarakhand State, India

Metabolitos con potencial fitohormonal en el cultivo de especies vegetales: aplicaciones en biotecnología

The Potential of Nutmeg’s Microbes (Myristica fragrans Houtt.) as Antagonistic Agents against Rigidoporus microporus

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