THRESHOLD AND QUANTITATIVE PHOTOPERIODIC RESPONSES EXIST IN AN INSECT

Authors
NUMATA H KOBAYASHI S
Citation
H. Numata et S. Kobayashi, THRESHOLD AND QUANTITATIVE PHOTOPERIODIC RESPONSES EXIST IN AN INSECT, Experientia, 50(10), 1994, pp. 969-971
Citations number
27
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Experientia → ACNP
ISSN journal
00144754
Volume
50
Issue
10
Year of publication
1994
Pages
969 - 971
Database
ISI
SICI code
0014-4754(1994)50:10<969:TAQPRE>2.0.ZU;2-X
Abstract
The photoperiodic response for the induction of adult diapause and tha t for the determination of nymphal body coloration were compared in Pl autia stall Scott (Heteroptera: Pentatomidae). The former was an all-o r-none response with a distinct threshold, but the latter was a graded response which varied quantitatively with the photophase duration. Th e photoperiodic clock in this species is discussed.