The specific response of gypsy moth A1 neurosecretory neurons to different environmental stressors
2014
Authors:
Ilijin, LarisaMrdaković, Marija
Perić Mataruga, Vesna
Todorović, Dajana
Lazarević, Jelica
Matić, Dragana
Vlahović, Milena
Document Type:
Article (Published version)
,
©2014 Institute of Zoology, Slovak Academy of Sciences
Metadata
Show full item recordAbstract:
Changes in the number and morphometric parameters of A1 neurosecretory
neurons (nsn) were analyzed in Lymantria dispar 4th instar caterpillars,
exposed for 3 days to different stressors: cadmium, high temperature and
tannic acid. The relative cytoplasm density of A1 nsn was also
estimated. Caterpillars reared on a diet supplemented with cadmium
exhibited increased size of A1 nuclei (10 and 250 mu g Cd per g of dry
food weight), increased number of nucleolii in nuclei and raised
relative cytoplasm density in all experimental groups. Cadmium obviously
induces intensive synthetic activity in A1 nsn. The second stressor was
high environmental temperature of 35 degrees C. Decrease of all analyzed
morphometric parameters suggests that acute exposure of 4th instar
caterpillars to 35 degrees C, as well as 12 h recovery at optimal
temperature of 23 degrees C, reduced the activity of A1 nsn. Tannic acid
was added to the artificial diet in the following concentrations: 1\%,
2.5\% and 5\%. All estimated morphological parameters did not change
after addition 1 and 2.5\% of tannic acid. After addition of 5\% of
tannic acid, the activity of A1 nsn declined.
Keywords:
A1 neurons; cadmium; high temperature; tannic acidSource:
Biologia, 2014, 69, 10, 1384-1394Funding / projects:
- The effects of magnetic fields and other environmental stressors on the physiological responses and behavior of different species (RS-MESTD-Basic Research (BR or ON)-173027)
DOI: 10.2478/s11756-014-0446-9
ISSN: 0006-3088
WoS: 000346176700015
Scopus: 2-s2.0-84920848698
URI
https://radar.ibiss.bg.ac.rs/handle/123456789/2143https://www.degruyter.com/view/journals/biolog/69/10/article-p1384.xml