干旱区生态环境知识资源中心(Arid): 荒漠昆虫天花吉丁虫的呼吸及体内水分损失特征

Arid

	荒漠昆虫天花吉丁虫的呼吸及体内水分损失特征
其他题名	Respiration and water-loss characteristics in a desert insect Julodis variolaris Pallas （ Coleoptera： Buprestidae）
	宋菁 1; 吕昭智 1; 王登元 2; 吴文岳 1; 苏延乐 1; 王晶 1
ISSN	0454-6296
出版年	2008
卷号	51 期号:2 页码:132-136
中文摘要	为研究荒漠地区昆虫的呼吸及水分损失特征,以专性寄生在荒漠植物梭梭上的天花吉丁虫Julodis variolaris Pallas为对象,采用LI-6400光合分析仪测定在20℃下天花吉丁虫的呼吸量,并采用重量法测定了不同温度下其水分散失率。结果表明：天花吉丁虫呼吸为典型的不连续气体交换循环（discontinuous gas exchange cycle,DGC）的模式,DGC平均周期约需12.96min,爆发间期历时平均约占整个DGC历时的80%,CO_2平均释放率为23.45muL/min。在25℃、30℃、35℃和40℃恒温条件下,单位时间内水分散失随温度升高而增加,10h内25℃和30℃之间的水分损失率无显著差异,但25℃和30℃与35℃、40℃之间的水分损失率具有显著性差异;10~24h内25℃、30℃、35℃之间的水分损失率具有显著性差异。荒漠昆虫天花吉丁虫在高温下的高脱水率和高死亡率说明,其在没有水分来源的情况下很难存活,而不连续呼吸模式是其适应高温干旱环境的对策之一。
英文摘要	To explore the respiration and water-loss of desert insects, respiration of a desert insect Julodis variolaris Pallas specially infesting on Haloxylon ammodendron at 20℃ was measured with LI-6400 Portable Photosynthesis System, and the rates of water-loss at different temperatures from 25 ℃ to 40℃ were determined by measuring weight loss. The results indicated that J. variolaris respired in the typically discontinuous gas exchange cycle （DGC）. The DGC duration was about 12.96 rain, of which the proportion of interburst duration was about 80%, and the CO_2 release rate was 23.45 muL/min. With the temperature increasing, the rates of water-loss were augmented at the constant temperatures of 25℃, 30℃, 35℃ and 40℃. Within 10 h, there was no difference in water-loss rate between at 25℃ and at 30℃, but the rates of water-loss between at 25℃ and 30℃ and at 35℃ and 40℃ differed significantly; from 10 h to 24 h, the rates of water-loss were significant different between at 25℃, 30℃ and 35℃ . The high rates of water-loss and mortality of the desert insect J. variolaris at high temperature suggested that it could not survive without water source. The DGC mode of respiration is one of the strategies for its survival in high temperature and aridity.
中文关键词	天花吉丁虫 ; 呼吸 ; 不连续气体交换循环 ; 水分损失
英文关键词	Julodis variolaris respiration discontinuous gas exchange cycle water-loss
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENTOMOLOGY
WOS研究方向	Entomology
CSCD记录号	CSCD:3222271
来源机构	中国科学院新疆生态与地理研究所 ; 新疆农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222546
作者单位	1.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国; 2.新疆农业大学农学院, 乌鲁木齐, 新疆 830052, 中国
推荐引用方式 GB/T 7714	宋菁,吕昭智,王登元,等. 荒漠昆虫天花吉丁虫的呼吸及体内水分损失特征[J]. 中国科学院新疆生态与地理研究所, 新疆农业大学,2008,51(2):132-136.
APA	宋菁,吕昭智,王登元,吴文岳,苏延乐,&王晶.(2008).荒漠昆虫天花吉丁虫的呼吸及体内水分损失特征.,51(2),132-136.
MLA	宋菁,et al."荒漠昆虫天花吉丁虫的呼吸及体内水分损失特征".51.2(2008):132-136.