共查询到20条相似文献，搜索用时 15 毫秒
1.
T L Avery 《Science (New York, N.Y.)》1969,164(878):423-424
Pituitaries of female mice in anestrus resulting from colony housing were characterized by a 58.0-percent (acidophil content. Subsequent exposure to restrained male mice for one and two nights failed to evoke significant acidophilic degranulation and resulted in pituitary acidophil values of 57.4 and 55.1 percent respectively. Exposure to released males on the third night produced marked acidophilic degranulation resulting in a significant decline in pituitary acidophils to 38.0 percent. These findings support the view that female pheromone suppresses and male pheromone favors the secretion of follicle-stimulating hormone and indicate that luteotrophic hormone is secreted at its assigned time in the sequence of cyclic ovarian events initiated by the secretion of follicle-stimulating hormone. 相似文献
2.
本文通过室内饲养观察,对兴安落叶松鞘蛾(Coleophora dahurica Flkv.)成虫生物学特性及交配行为进行了研究。结果发现:其雄成虫出现的时间比雌成虫早24—36h。雌成虫羽化后24—42h为性信息分泌高峰期;羽化后30—48h的雄成虫对性信息素反应最敏感,故雄成虫提前羽化对交配有利。雌成虫无重复交配现象;雄成虫可重复交配,最多可达4次左右。雌、雄成虫在交配过程中有一定的行为反应。补充营养和交配次数对成虫寿命有一定影响。 相似文献
3.
Topical application of 25, 50, or 100 micrograms of 10,11-epoxy-farnesenic acid methyl ester in peanut oil induced male Ips confusus to produce sex pheromone in the hindgut Malpighian tubule region. Twenty-four hours aftertreatment of male beetles with 100 micrograms of hormone, their hindgut Malpighian tubule extract was more attractive to female beetles in a laboratory bioassay than was extract from males producing pheromone naturally in ponderosa pine logs. 相似文献
4.
铜绿金龟甲性信息素分泌部位和提取的研究 总被引：4，自引：0，他引：4
对铜绿金龟甲雌虫虫体的四个部位的二氯甲烷分段提取物进行生物活性测定发现,雌虫能够释放性信息素,并引起雄虫多种反应。组织染色切片发现,在羽化初期雌虫直肠细胞有分泌现象。超薄切片观察到,分泌期直肠细胞线粒体减少,内质网增多,脂滴大量积累于细胞顶端,并有相当一部分已分泌出细胞之外。据此认为,铜绿金龟甲属于信息素分泌的非专一腺体类型的昆虫。 相似文献
5.
D D Thiessen F E Regnier M Rice M Goodwin N Isaacks N Lawson 《Science (New York, N.Y.)》1974,184(132):83-85
Sebum from the ventral scent marking gland of the male Mongolian gerbil was fractionated and tested for its ability to elicit behavioral response in a conditioning task and in a stimulus preference situation. The active fraction was identified as phenylacetic acid; both it and a synthetic sample elicited the same behavioral response. Phenylacetic acid appears to be a major pheromone of the male Mongolian gerbil. 相似文献
6.
Which behavior does the lamprey central motor program mediate? 总被引：1，自引：0，他引：1
The isolated lamprey spinal cord, when bathed in 2 millimolar D-glutamic acid, will generate a pattern of motor neuron discharge that has generally been assumed to represent the central motor program for swimming. Motion pictures of behaving lampreys were analyzed by a computer algorithm to estimate undulatory movement parameters that could be directly compared with those generated during D-glutamate--induced undulations. The D-glutamate--induced movement parameters were significantly different from those observed during normal behaviors, including swimming, but accurately predicted the undulations produced by spinally transected adult lampreys. 相似文献
7.
The pheromone-mediated flight behavior of male Oriental fruit moths was observed in the field to test the hypothesis that male activation far downwind of a female is initiated by the major, or most abundant, component of the pheromone blend. Males responded at significantly greater distances to the three-component pheromone blend produced by females than to the major component alone or to either binary mixture containing the major component and one minor component. These results support the alternative hypothesis that the active space of a multicomponent pheromone is a function of male perception of the female-released blend of components, rather than of the major component alone, and that so-called minor components have a greater impact on male behavior farther downwind of a female than previously thought. 相似文献
8.
P S Sarin D K Sun A H Thornton P H Naylor A L Goldstein 《Science (New York, N.Y.)》1986,232(4754):1135-1137
9.
The behavioral function of a pheromone released by males of the army-worm moth Pseudaletia unipuncta was investigated both in laboratory wind-tunnel experiments and in experiments with moth-baited traps in the field. Such male moth scents have been thought to act at close range as sexual stimulants for females of the same species. However, the only obvious effect of the P. unipuncta male pheromone was upon other males, decreasing their tendency to approach sexually receptive, pheromone-releasing females and to exhibit copulatory behavior when near those females. The adaptive significance of the male pheromone may be related to the increased reproductive efficiency that results if multiple males are prevented from competing for a single female. 相似文献
10.
The sex attractant produced by adult females of the sugar beet wire-worm, Limonius californicus (Mannerheim) has been isolated and identified as valeric acid. In the laboratory, male wireworm beetles are repelled by the pure attractant but are drawn with intense sexual excitement to its dilute solutions; in the field, male beetles are lured from a distance of 12 meters. The pheromone occurs in unusually large amounts in the female's body. 相似文献
11.
昆虫性信息素生物学研究与应用进展 总被引：10，自引：6，他引：4
近年来,利用昆虫本身生理生化特性和行为学特点作为害虫防治的新技术日益受到重视,其中性信息素的研究尤为突出。性信息素是昆虫交配时两性相互寻找过程中的重要纽带和必备因素,可以保证昆虫在种群内雌雄个体之间性的联系及物种有条不紊的繁衍。昆虫性信息素具有专一、高效、无毒、无污染、不伤益虫等优点。就近些年来的昆虫性信息素生物学特性及应用的情况进行了较为详细的概述,并对其进行了展望。 相似文献
12.
13.
Boake CR 《Science (New York, N.Y.)》1985,227(4690):1061-1063
To investigate whether female mate choice could be directed at male genetic quality, male chemical signals and progeny fitness were studied in the red flour beetle (Tribolium castaneum). Differences among males in the attractiveness of their pheromone to females were statistically significant. Developmental time of progeny was significantly heritable, indicating that some males have "good genes" for this trait. There was no statistically significant correlation between progeny fitness and male attractiveness. These results do not support the hypothesis that in this species the evolution of female preferences for male pheromone is adaptive. 相似文献
14.
2个甜菜夜蛾信息素结合蛋白cDNA片段的克隆和序列分析 总被引：4，自引：0，他引：4
通过比较几种已发表夜蛾科昆虫的信息素结合蛋白（PBP）氨基酸序列，设计合成一对简并性引物, 利用反转录多聚酶链式反应（RT-PCR）技术从甜菜夜蛾(Spodoptera exigua Hübner)雄虫触角扩增得到2个分别为275 bp和281 bp的cDNA片段SexigPBP1和SexigPBP2，其分别由92个氨基酸残基和94个氨基酸残基组成。通过在GenBank中进行序列的同源性比较，表明这2个序列与已知几种昆虫的PBP氨基酸序列具较高同源性。 相似文献
15.
Pheromonally induced sexual maturation in females: regulation by the social environment of the male 总被引：1，自引：0，他引：1
Social subordination, which suppresses gonadal function in juvenile and adult male house mice, also suppresses the activity of an androgen-dependent urinary pheromone that accelerates the rate of sexual maturation in juvenile females. Pheromone production may also be suppressed by the presence of pregnant or lactating females. This suggests that the social environment may influence the fertility of population females by altering urinary pheromone activity in the male. 相似文献
16.
Insect sex-pheromone signals mediated by specific combinations of olfactory receptors 总被引：4，自引：0，他引：4
We describe two male-specific olfactory receptors (ORs) in the silk moth, Bombyx mori, that are mutually exclusively expressed in a pair of adjacent pheromone-sensitive neurons of male antennae: One is specifically tuned to bombykol, the sex pheromone, and the other to bombykal, its oxidized form. Both pheromone ORs are coexpressed with an OR from the highly conserved insect OR subfamily. This coexpression promotes the functional expression of pheromone receptors and confers ligand-stimulated nonselective cation channel activity. The same effects were also observed for general ORs. Both odorant and pheromone signaling pathways are mediated by means of a common mechanism in insects. 相似文献
17.
Sex pheromone of the winter moth, a geometrid with unusually low temperature precopulatory responses
Roelofs WL Hill AS Linn CE Meinwald J Jain SC Herbert HJ Smith RF 《Science (New York, N.Y.)》1982,217(4560):657-659
The sex pheromone for the winter moth, Operophtera brumata (L.), has been identified as the novel compound (Z,Z,Z)-1,3,6,9-nonadecatetraene. The male moths respond to the pheromone at low temperatures (4 degrees to 15 degrees C) and exhibit an upper response limit that coincides with the lower response limit for other reported moth sex pheromone systems. The pheromone attracted two other geometrid species, O. bruceata (Bruce spanworm) and O. occidentalis. 相似文献
18.
为生物防治棉大卷叶野螟提供科学依据,研究棉大卷叶螟雌虫性信息素对雄虫的诱集作用,在野外和室内用棉大卷叶野螟雌虫及其性信息素提取物对雄虫进行诱集试验.研究发现:1～7日龄雌成虫及相应日龄雌成虫性信息素提取物随着日龄的增高,对雄蛾的引诱力逐渐降低;随着距离的加大,其诱集作用亦逐渐下降;1～7日龄雌成虫性信息素提取物对雄成虫... 相似文献
19.
Identification of a neuropeptide hormone that regulates sex pheromone production in female moths 总被引：2，自引：0，他引：2
Raina AK Jaffe H Kempe TG Keim P Blacher RW Fales HM Riley CT Klun JA Ridgway RL Hayes DK 《Science (New York, N.Y.)》1989,244(4906):796-798
A pheromone biosynthesis activating neuropeptide (PBAN) hormone that controls sex pheromone production in female moths was identified from the brain-subesophageal ganglion complexes of the adult corn earworm, Heliothis zea. PBAN has 33 amino acid residues and a molecular weight of 3900. Its amino acid sequence has no significant homology with any of the fully characterized peptide hormones. The synthetic peptide, at a dose of between 2 and 4 picomoles, induced production of a normal quantity of sex pheromone in ligated H. zea females. The peptide also induced pheromone production in six other species of moths, thus indicating that this or similar peptides may be responsible for the regulation of pheromone production in moths. 相似文献
20.
为了探索性信息素在不同种鼠间产生的行为关系,以及不同种间和不同性别鼠对其各自不同物种间的识别及其社会行为,运用Y型迷宫测试法,以不同鼠种之间雌/雄个体包皮腺分泌物作为单一气味源,对性成熟期的SD大鼠(Rattus norregicus)和ICR小鼠(Mus musculus)进行异种间气味吸引的行为学试验。结果表明:以ICR小鼠包皮腺分泌物作为气味源,雄性大鼠对雌性小鼠包皮腺分泌物的探究行为和修饰行为均高于对照,差异极显著;以SD大鼠包皮腺分泌物作为气味源,则表现为雄性小鼠对雌性大鼠包皮腺分泌物的探究行为次数均高于对照,差异极显著。雄性ICR小鼠对SD大鼠性信息素成分表现出较高的敏感性;而雌性ICR小鼠的性信息素成分对雄性SD大鼠的探究行为有一定的影响,表现出吸引作用。 相似文献