Evaluation of aqueous and ethanol extract of bioactive medicinal plant, Cassia didymobotrya (Fresenius) Irwin & Barneby against immature stages of filarial vector, Culex quinquefasciatus Say (Diptera: Culicidae)

Solanum glaucophyllum Desf. (Solanaceae) is traditionally used for curing several health conditions in both human and domesticated animals. There is no data available regarding pharmacognostic standardization and pharmacological activity of this less known medicinal plant. Therefore, the aim of the present work is to prepare pharmacognostic fingerprints of crude drugs obtained from the leaf and stem parts of S. glaucophyllum. Apart from this detailed phytochemical analysis, antioxidant and antimicrobial studies have also been carried out. Pharmacognostic study revealed that the leaves are amphistomatic and stomata are strictly of anisocytic type. Values of stomatal index, palisade ratio, ash content of the investigated parts are found distinct and can be used as pharmacognostic standards for evaluation of crude drugs of this medicinal plant. Phytochemical studies of the leaf and stem parts indicated that phenolics, flavonoids, tannins and alkaloids are present in quite impressible amount. Curcumin content in stem was found very high through HPLC analysis. In DPPH radical scavenging assay, the stem part showed significant antioxidant potential. Ethanol extract of stem produced maximum inhibition zone (11mm) against Pseudomonas aeruginosa at the concentration of 50 mg/ml among five test microorganisms. Some pharmacognostic features recorded in this study as diagnostic ones will help in proper identification of this ethnomedicinal plant in its fresh as well as dried form. On the other hand preliminary phytochemical, antioxidant and antimicrobial studies highlight the S. glaucophyllum as a promising candidate for bioprospecting.

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Effects of ultraviolet radiation on Culex quinquefasciatus immature stages

Entomological Research ◽

10.1111/1748-5967.12494 ◽

2021 ◽

Author(s):

Kashif Munawar ◽

Azzam M. Alahmed ◽

Sayed M.S. Khalil

Keyword(s):

Ultraviolet Radiation ◽

Culex Quinquefasciatus ◽

Immature Stages

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Studies on seasonal fluctuation of different indices related to filarial vector, Culex quinquefasciatus around foothills of Susunia of West Bengal, India

Asian Pacific Journal of Tropical Medicine ◽

10.1016/s1995-7645(10)60174-5 ◽

2010 ◽

Vol 3 (9) ◽

pp. 727-730 ◽

Cited By ~ 5

Author(s):

Manas Paramanik ◽

Goutam Chandra

Keyword(s):

Culex Quinquefasciatus ◽

West Bengal ◽

Seasonal Fluctuation ◽

Filarial Vector

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Age composition of the filarial vector Culex quinquefasciatus (Diptera: Culicidae) in Calcutta, India

Bulletin of Entomological Research ◽

10.1017/s0007485300052500 ◽

1996 ◽

Vol 86 (3) ◽

pp. 223-226 ◽

Cited By ~ 6

Author(s):

G. Chandra ◽

B. Seal ◽

A.K. Hati

Keyword(s):

Culex Quinquefasciatus ◽

Average Duration ◽

Mortality Rates ◽

Gonotrophic Cycle ◽

Daily Survival Rate ◽

Daily Mortality ◽

Age Composition ◽

Adult Females ◽

Vector Mosquito ◽

Filarial Vector

AbstractAge composition of the filarial vector mosquito Culex quinquefasciatus (Say) was determined by examining the number of ovariolar dilatations of 1200 adult females from Calcutta. Average duration of the gonotrophic cycle was 4.5 days. The proportion parous, the daily survival rate and daily mortality rates of the natural population were 0.53, 0.87 and 13%, respectively. The oldest mosquito sampled in the study area passed eight gonotrophic cycles in its lifetime.

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