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15452

Desiccation intolerance of the red palm weevil, Rhynchophorus ferrugineus (oliv) adults in relation to their cuticular hydrocarbons

Article

Last updated: 03 Jan 2025

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Abstract

The
desiccation tolerance of red palm weevil (RPW), Rhynchophorus ferrugineus
was investigated in the laboratory. Adults exposed to 35 or 75% relative
humidity showed high rate of water loss. Water loss rate averaged 2.32 ± 0.35
and 6.71 ± 0.73 mg /g fresh body weight/hr at 35 or 75% RH, respectively, and
cumulative loss increased with time. Adults exposed to 35% RH died within a
maximum of 4 days. Cuticular hydrocarbons (CHCs) were isolated and identified
from adults to elucidate the physiological basis of their intolerance to
desiccation. They were dominated by saturated n-alkanes (75%), while the ester
compound 1-henicosyl formate, the fatty alcohol 3-(E) eicosanol and the alkene tricosene
represented 25% of total surface CHCs. The desecration intolerance of weevils
was attributed to the presence of relatively high proportion of 1-henicosyl
formate (17.5%) which could form large pores within the waxy waterproofed CHCs layer
of weevils

DOI

10.21608/eajbsa.2009.15452

Keywords

Desiccation, Red palm weevil, cuticular hydrocarbons

Authors

First Name

Monzer

Last Name

A.

MiddleName

M.

Affiliation

Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt

Email

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City

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Orcid

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First Name

Hesham

Last Name

Srour

MiddleName

A.

Affiliation

Plant Protection Research Institute, Agricultural Research Center, Dokki, Giza, Egypt

Email

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City

-

Orcid

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Volume

2

Article Issue

1

Related Issue

3320

Issue Date

2009-06-01

Receive Date

2018-10-01

Publish Date

2009-06-01

Page Start

47

Page End

53

Print ISSN

1687-8809

Online ISSN

2090-0813

Article File

EAJBSA_Volume 2_Issue 1_Pages 47-53.pdf

PDF . 826.1kB

Link

https://eajbsa.journals.ekb.eg/article_15452.html

Detail API

https://eajbsa.journals.ekb.eg/service?article_code=15452

Order

6

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Original Article

Type Code

667

Publication Type

Journal

Publication Title

Egyptian Academic Journal of Biological Sciences. A, Entomology

Publication Link

https://eajbsa.journals.ekb.eg/

MainTitle

Desiccation intolerance of the red palm weevil, Rhynchophorus ferrugineus (oliv) adults in relation to their cuticular hydrocarbons

Details

Type

Article

Created At

22 Jan 2023