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16048

Influence of Sudden Thermal Stresses on Growth Rate and Enzymatic Identification of Bombyx mori L. Larvae

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Last updated: 22 Jan 2023

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Abstract

The
purpose of this study is to determine the impact of different thermal stresses
for different periods on univoltine Bombyx mori embryos and grown larvae
in terms of larval growth rates, effective rate of rearing and the enzymatic
proliferation of larval haemolymph. Egg groups was exposed to different
temperatures; 0°C for one hour, 0°C for two hours, 40°C for one hour and 40°C
for two hours, followed by 2 hours recovery at room temperature in addition to
a control group, the same was applied to the grown larvae. Larval haemolymph of
tested groups were subjected to enzyme electrophoretic analysis by native
polyacrylamide gel electrophoresis (PAGE) for phosphatases and esterases
identification.Exposure to sudden thermal
stress of 0°C for one hour at larval stage recorded
the highest growth rate. The sudden thermal stresses did notsignificantly affect the effective rate of rearing.
However, thermal stresses increased ACPase and ALKPase activities and decreased
α and β esterases activities comparing to control. These results suggest
applying sudden heat thermal proteins in breeding strategy for inducing
robustness in productive breeds.

DOI

10.21608/eajbsc.2014.16048

Keywords

Silkworm, thermal stress, egg, Larvae, growth rate, Effective rate of rearing, Enzymes

Authors

First Name

Rehab

Last Name

Taha

MiddleName

H.

Affiliation

Sericulture Research Department (SRD), Plant Protection Research Institute (PPRI), Agricultural Research Center (ARC), Egypt.

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Orcid

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First Name

Saad

Last Name

I.

MiddleName

I. A.

Affiliation

Sericulture Research Department (SRD), Plant Protection Research Institute (PPRI), Agricultural Research Center (ARC), Egypt.

Email

-

City

-

Orcid

-

First Name

Eman

Last Name

Hassan

MiddleName

M.

Affiliation

Sericulture Research Department (SRD), Plant Protection Research Institute (PPRI), Agricultural Research Center (ARC), Egypt.

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City

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Orcid

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Volume

6

Article Issue

1

Related Issue

3452

Issue Date

2014-06-01

Receive Date

2018-10-06

Publish Date

2014-06-01

Page Start

71

Page End

81

Print ISSN

2090-0767

Online ISSN

2090-083X

Article File

EAJBSC_Volume 6_Issue 1_Pages 71-81.pdf

PDF . 346.2kB

Link

https://eajbsc.journals.ekb.eg/article_16048.html

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https://eajbsc.journals.ekb.eg/service?article_code=16048

Order

7

Type

Original Article

Type Code

673

Publication Type

Journal

Publication Title

Egyptian Academic Journal of Biological Sciences. C, Physiology and Molecular Biology

Publication Link

https://eajbsc.journals.ekb.eg/

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Article

Created At

22 Jan 2023