Abstract：
:Larvae of Syrphus ribesii collected from overwintering sites in the U.K. are strongly freeze tolerant with 70% survival at -35 degrees C. The cold tolerance of laboratory reared insects increased with increasing periods of acclimation at 0 degrees C, with a concurrent rise in the supercooling point (SCP) from -6.8+/-0.1 to -5.1+/-0.3 degrees C. There was 50% survival in the most cold-hardy group 72h after brief exposures to -30 degrees C. The retention of gut contents caused a decrease in cold hardiness, with only 13% of larvae surviving 72h after exposure to -15 degrees C, with no subsequent pupation or emergence. Wet larvae had a significantly higher SCP (-5.0+/-0.2 degrees C) compared to dry larvae (-7.8+/-0.4 degrees C), although survival of larvae was similar in both groups. There was no nucleator activity in the haemolymph of field collected larvae. The importance of these findings are discussed in relation to the freeze tolerance strategy of S. ribesii.
journal_name
J Insect Physioljournal_title
Journal of insect physiologyauthors
S Bale J,J Hart Adoi
10.1016/s0022-1910(97)00106-6keywords:
subject
Has Abstractpub_date
1997-11-01 00:00:00pages
21-29issue
1eissn
0022-1910issn
1879-1611pii
S0022-1910(97)00106-6journal_volume
44pub_type
杂志文章abstract：:Attraction of many gravid female herbivore insects to suitable host plants is mediated largely by olfactory cues. Behaviorally, synergism among odor mixtures constituents underlies this attraction in some systems. Yet, the representation of synergistic odor-mixture effects is unknown in the antennal lobe, the first pr...
journal_title：Journal of insect physiology
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pub_type： 杂志文章
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pub_type： 杂志文章
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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pub_type： 杂志文章,评审
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pub_type： 杂志文章
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更新日期：2004-10-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2009.10.015
更新日期：2010-03-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2018.03.005
更新日期：2018-01-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2016.11.014
更新日期：2017-04-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
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更新日期：2021-01-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2005.02.007
更新日期：2005-04-01 00:00:00
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journal_title：Journal of insect physiology
pub_type： 杂志文章
doi：10.1016/j.jinsphys.2017.01.020
更新日期：2017-04-01 00:00:00
abstract：:The in vitro secretion of ecdysteroids from the prothoracic glands of larvae of Gryllus bimaculatus was analysed by HPLC-RIA. The primary product was identified as 3-dehydroecdysone (65-93%), with lesser amounts of ecdysone (7-35%). Production and release of ecdysteroids from the prothoracic glands are calcium-depende...
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pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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更新日期：1998-07-01 00:00:00
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更新日期：2001-03-01 00:00:00
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pub_type： 杂志文章
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journal_title：Journal of insect physiology
pub_type： 杂志文章,评审
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更新日期：2010-09-01 00:00:00
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pub_type： 杂志文章
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更新日期：2008-04-01 00:00:00
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pub_type： 杂志文章
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abstract：:Chemosensory proteins (CSPs) are a family of small soluble proteins that, in addition to the odorant-binding proteins (OBPs), are involved in chemical communication. To understand the physiological function of the 16 known CSPs in the silkworm Bombyx mori, we investigated the expression patterns in different tissues a...
journal_title：Journal of insect physiology
pub_type： 杂志文章
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更新日期：2013-07-01 00:00:00
