Physiological effectors regulating gene expression of the hypertrehalosemic hormone in the cockroach, Blaberus discoidalis /

(Bld-HrTH) in the corpora cardiaca (CC) of Blaberus

Bibliographic Details
Main Author: Lewis, Danielle K.
Format: Thesis eBook
Language:English
Published: [Place of publication not identified] : [publisher not identified] ; 1996.
Subjects:
Online Access:Link to OAKTrust copy
Description
Summary:(Bld-HrTH) in the corpora cardiaca (CC) of Blaberus
48 hours; but injections of glucose or trehalose,
affected by starvation. The mechanical aspects of chewing
analyses were used to elucidate the physiological factors
and 4. Mating had no effect on Bld-HrTH MRNA content in
and neural stimuli by stretch receptors of the foregut did
Bld-HrTH message was determined to be approximately 0.5 kb.
Bld-HrTH MRNA content declined by about 50% between days 0
carbohydrate-rich agar cubes given ad lib., and glucose
carbohydrates passing through the gut do not appear to play a
CC, ventral nerve cord, fat body, and brain were tested to
content This baseline data was used to target the appropriate
declined by approximately 75% by day 10, where it remained
demonstrate that regulation of Bld-HrTH is influenced by age,
determine if Bld-HrTH was produced solely in the CC or if
discoidalis. Using northern blot hybridization analysis the
Dot blot hybridization and northern blot hybridization
female CC. Starvation for 10 days, but not dehydration,
For both males and females, the highest content of Bld-HrTH
gender and feeding Reproduction, water intake, the presence
HrTH MRNA content in males, however, did not appear to be
increased Bld-HrTH MRNA content 1.8-fold in females. Bld-
influenced by glucose or trehalose. A biosynthetic model
Initial studies using dot blot hybridization analysis focused
MRNA was found immediately after the adult molt. Bld-HrTH
MRNA was high in females between days 0 through 4 but
not affect Bld-HrTH MRNA content. Feeding following
of circulating carbohydrates within the hemocoel, and
on the effects of age, gender, and sex on Bld-HrTH MRNA
on the role of glucose and trehalose in Bld-HrTH regulation.
presented in these studies, regulation of Bld-HrT'H in
regulating transcript levels of the hypertrehalosemic hormone
relating Bld-HrTH gene expression to trehalose utilization in
relation to feeding is nutritionally based but is not
significant role in Bld-HrTH MRNA content. Based on the data
significantly affect Bld-HrTH MRNA content. These studies
solutions given ad lib. in starved females did not
stage for analyzing various aspects of feeding with emphasis
starvation down-regulated Bld-HrTH transcripts by 30% after
the cells has been proposed.
there were other sites of synthesis. The CC was the only
through day 30. In males, the trend was similar, but the
tissue in which Bld-HrTH MRNA was detected. The size of the
Item Description:"Major subject: Entomology".
Vita.
Physical Description:vii, 61 leaves : illustrations ; 28 cm.
Also available online.
Issued also on microfiche from Lange Micrographics.
Bibliography:Includes bibliographical references: P. 51-60.