Croxford A C, Edwards P J, Wratten S D
Department of Biology, The University, Building 44, SO9 5NH, Southampton, UK.
Oecologia. 1989 Jun;79(4):520-525. doi: 10.1007/BF00378670.
Leaves of soybean (Glycine max (L.) Merr.) and cotton (Gossypium hirsutum L.) were mechanically damaged with a single hole and offered to Spodoptera littoralis Boisd (Lep., Noctuidae) larvae in laboratory bioassays at intervals of between 0 and 7 days from damage. The subsequent within-leaf grazing patterns of damaged and undamaged areas were compared using an image-analysing computer, and estimations were made by eye of percentage, areas grazed at three spatial scales. Reduction in palatability of damaged areas of both plant species was detected, at time intervals ranging from 0 to 7 days after damage. This effect was strongest for the longer time intervals and the effect became weaker with increasing distance from the site of damage. These results are discussed in relation to possible defensive roles of wound-induced changes.
用单孔对大豆（Glycine max (L.) Merr.）和棉花（Gossypium hirsutum L.）叶片进行机械损伤，并在损伤后0至7天的间隔期，在实验室生物测定中将其提供给滨海夜蛾（Spodoptera littoralis Boisd，鳞翅目，夜蛾科）幼虫。使用图像分析计算机比较受损和未受损区域随后的叶片内取食模式，并通过肉眼估计三个空间尺度上被取食区域的百分比。在损伤后0至7天的时间间隔内，检测到两种植物受损区域的适口性降低。这种影响在较长时间间隔时最强，并且随着与损伤部位距离的增加，这种影响会变弱。结合伤口诱导变化可能的防御作用对这些结果进行了讨论。
