菟丝子
番茄
寄主(生物学)
生物
寄生植物
凤仙花
植物
植物生长
栽培
生态学
作者
Justin B. Runyon,Mark C. Mescher,Consuelo Μ. De Moraes
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2006-09-29
卷期号:313 (5795): 1964-1967
被引量:309
标识
DOI:10.1126/science.1131371
摘要
The importance of plant volatiles in mediating interactions between plant species is much debated. Here, we demonstrate that the parasitic plant Cuscuta pentagona (dodder) uses volatile cues for host location. Cuscuta pentagona seedlings exhibit directed growth toward nearby tomato plants (Lycopersicon esculentum) and toward extracted tomato-plant volatiles presented in the absence of other cues. Impatiens (Impatiens wallerana) and wheat plants (Triticum aestivum) also elicit directed growth. Moreover, seedlings can distinguish tomato and wheat volatiles and preferentially grow toward the former. Several individual compounds from tomato and wheat elicit directed growth by C. pentagona, whereas one compound from wheat is repellent. These findings provide compelling evidence that volatiles mediate important ecological interactions among plant species.
科研通智能强力驱动
Strongly Powered by AbleSci AI