转化的长春花根对飞摩尔浓度水杨酸的反应。
Responses of transformed Catharanthus roseus roots to femtomolar concentrations of salicylic acid.
作者信息
Echevarría-Machado Ileana, Escobedo-G M Rosa María, Larqué-Saavedra Alfonso
机构信息
Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán, A. C., Calle 43 No. 130, Col. Chuburná de Hidalgo, CP 97200, Mérida, Yucatán, Mexico.
出版信息
Plant Physiol Biochem. 2007 Jun-Jul;45(6-7):501-7. doi: 10.1016/j.plaphy.2007.04.003. Epub 2007 Apr 14.
Catharanthus roseus transformed roots were cultured in the presence of salicylic acid (SA) at concentrations between 0.1 fM and 100 pM and the effect on root growth was evaluated. Significant morphological changes in the lateral roots were recorded on day two in the SA treatment. Presence of SA increased root cap size and caused the appearance of lateral roots closer to the root tip. The bioassay was sensitive enough to allow testing of low concentrations of other growth regulators that may affect root morphology and physiology.
长春花转化根在水杨酸（SA）浓度为0.1 fM至100 pM的条件下培养，并评估其对根生长的影响。在SA处理的第二天，侧根出现了显著的形态变化。SA的存在增加了根冠大小，并导致更靠近根尖处出现侧根。该生物测定法足够灵敏，能够检测可能影响根形态和生理的其他低浓度生长调节剂。
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