Seed germination responses of the medicinal herb Centella asiatica

Devkota, Anjana; Jha, Pramod Kumar

doi:10.1590/s1677-04202010000200008

Cited by 15 publications

(6 citation statements)

References 20 publications

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“…This proves that the reduction or complete elimination of germination at different concentrations of the chemicals is due to the failure of the respiratory mechanism of the cells. Recently, Devkota and Jha (2010) [ 22 ] based on their studies stated that viability of seeds deteriorated as duration of storage increased and they became non-viable after storing it for thirty months.…”

Section: Resultsmentioning

confidence: 99%

Biodegradation effects of o-cresol by Pseudomonas monteilii SHY on mustard seed germination

Krishnan

Nayarisseri²,

Usha

2018

Bioinformation

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Cresols are ubiquitous due to industrial production and natural presence. o-cresol (2-methyl phenol) is highly toxic to both fauna and flora. It has been included in the EPA list as one of the priority pollutants. The deleterious effects of pesticides, herbicides, and many other chemical compounds on seed germination are known. However, the effect of o-cresol on seed germination is not known. Therefore, it is of interest to study the effect of o-cresol on germination of 13 different vegetable crop seeds using standard Filter Paper Method. There is no effect on germination for brinjal, red chili, and (green gram, chickpea, cucumber, tomato, fenugreek, cowpea, Green pea, coriander, and spinach, seeds even at 1500 mg/l of o-cresol However, okra and mustard were found to be sensitive to ocresol. Germination of mustard under controlled concentration of o-cresol showed similar results by soil method. It was found that germination percentage and seedling vigour (Vigour Index) was reduced by o-cresol. The percent germination was reduced to 64 and 12 at 25 and 50 mg o-cresol/kg soil as against 100% in the case of untreated control. The vigour index was reduced to 160 and 10, respectively as against of 646 that for the control. The viability of seeds by 2,3,5 - tetrazolium trichloride (TTC) test showed that a considerable reduction was observed at 200mg/l o-cresol. Reduced protease and amylase activity in o-cresol shows inhibited mustard generation. However, mustard generation inhibition was restored by the bioremediation of o-cresol using Pseudomonas monteilii SHY. Thus, the biodegradation effects of o-cresol by Pseudomonas monteilii SHY on mustard seed germination are shown.

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Section: Resultsmentioning

confidence: 99%

Biodegradation effects of o-cresol by Pseudomonas monteilii SHY on mustard seed germination

Krishnan

Nayarisseri²,

Usha

2018

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“…Consequence of intracellular accumulation of ROS is breakdown of various biomolecules like protein, lipid, nucleic acid etc in plant cell which results cellular death and diminishes productivity of plants. Reviews show that the higher concentration of salts in soil decrease germination ability of Centella asiatica plant seeds (Devkota et al, 2010).…”

Section: Abiotic Stresses and Their Impact On Plant (In Special Refermentioning

confidence: 99%

Role Of Phyllospheric Bacteria In Biochemical Mechanism Of Salinity Stress Alleviation In Centella asiatica

Gupta¹,

Waoo²

2019

Indian Journal of Scientific Research

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Phytochemical or biochemical preparation of various plants like Centella asiatica contains various biologically active compounds and its analysis will provide an opportunity for new drugs lead. Due to their medical importance, there is always a need to cultivate these plants at large scale. In current scenario high population explosion demands for more crop productivity, but crop productivity is adversely affected by increasing abiotic stress like soil salinization. High salinity adversely affects plant growth because it increases osmotic potential gradient of soil which further decreases water and nutrient uptake ability of plant roots from soil. Low water and nutrient availability inhibits various vital activities of plant. Various important amino acids (like proline, methionine etc) help plant to alleviate or tolerate abiotic stresses like soil salinity. Abiotic stress tolerance mechanism in Plant cells include remodeling of their gene expression which results in corresponding alteration in the intracellular levels of such stress alleviating metabolites like amino acids in plant cells. Development of methods, to improve stress tolerance against soil salinization in plants, is a strategy to deal with negative impacts of harsh environmental conditions on plants. Exploitation of beneficial microflora present in phyllosphere of plant provides a new platform for improving salinity tolerance in the plant. Bacteria are the most abundant inhabitants of the phyllosphere. This review focuses on stress alleviation mechanism attributed by Phyllosphere bacteria in plant. Recent biochemical and molecular studies in plant biotechnology have provided insights into metabolic network of plant-microbe interaction that enhance salinity tolerance. The significance of phyllosphere microbiome includes regulation of biosynthesis of stress alleviating sulfur containing metabolites like amino acids, vitamins in host plant. Sulfur metabolites are useful to alleviate salinity stress in plants due to their ion scavenging ability which results in osmotic balance. This review signifies the role of phyllospheric bacteria in remodeling of various metabolic activities of host plant that confer salinity tolerance

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“…Depressed growth and low yields of major crops are caused by weeds which able to compete and secrete allelopathic substances that inhibit the growth of plants around them (Oksari, 2014). Devkota and Jha (2010) research showed that there is an allelopathic effect of aqueous extracts of Parthenium hysterophorus, Chromolaena odorata, Ageratum conyzoides and Xanthium strumarium that significantly inhibiting C. asiatica seed germination. Several studies related to weeds are the dominant weeds in rubber plantations which included the families of Graminae, Compositae and Cyperaceae, while the dominant weeds in maize plantations are Asteraceae and Poaceae (Suryaningsih et al, 2011;Sari and Rahayu, 2013).…”

Section: Introductionmentioning

confidence: 99%

Weed’s Vegetation Analysis of Centella (Centella asiatica L. Urban) Plantations

Susanti¹,

Safrina²,

Wijaya³

2021

Caraka Tani J. Sustain. Agric.

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Centella (Centella asiatica L. Urban) originally is a wild plant that is being cultivated to be medicinal and cosmetics raw material. The process of centella cultivation is relatively easy and can be grown in a variety of altitudes. One obstacle in centella cultivation is weed growth. The proper handling of weeds in centella plantation requires data on the weed types and characteristics. This research aimed to determine the weed types and the amount of weed found in centella cultivation. Sampling was carried out purposively based on the presence of weeds in the cultivation area. Weed inventory was carried out using linear vegetation methods in 12 plantation beds of centella, with a size of 6 x 2 m2 each. Observations were made during weeding on one cropping season. Weed inventory was carried out by recording the number of species and number of individual weed and taking documentation of weeds that were recorded for identification purposes. Research data were analyzed by using vegetation analysis. The weed vegetation analysis on centella plantations showed that there were 35 species of weeds identified from 20 plant families. Cyperus rotundus L. dominates the weed vegetation in centella plantations because of its high adaptability and its allelochemical exudates. To sustainably cultivate the centella, proper techniques of weed controls need to be applied by considering the nature of Cyperus rotundus L.

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Seed germination responses of the medicinal herb Centella asiatica

Cited by 15 publications

References 20 publications

Biodegradation effects of o-cresol by Pseudomonas monteilii SHY on mustard seed germination

Biodegradation effects of o-cresol by Pseudomonas monteilii SHY on mustard seed germination

Role Of Phyllospheric Bacteria In Biochemical Mechanism Of Salinity Stress Alleviation In Centella asiatica

Weed’s Vegetation Analysis of Centella (Centella asiatica L. Urban) Plantations

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