来自钱波顿河的水和土壤水提取物的急性毒性。你提供的原文似乎不完整，最后的“in.”后面应该还有具体信息。

Chan-Keb Carlos A, Agraz-Hernández Claudia M, Perez-Balan Roman A, Gómez-Solano Mónica I, Maldonado-Montiel Teresita D N J, Ake-Canche Baldemar, Gutiérrez-Alcántara Eduardo J

Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Campeche, Av. Agustín Melgar s/n entre Juan de la Barrera y Calle 20, Col. Buenavista, A.P. 24039, San Francisco de Campeche, Campeche, Mexico.

Instituto EPOMEX, Universidad Autónoma de Campeche, Av. Agustín Melgar s/n entre Juan de la Barrera y Calle 20, Col. Buenavista, A.P. 24039, San Francisco de Campeche, Campeche, Mexico.

Toxicol Rep. 2018 May 17;5:593-597. doi: 10.1016/j.toxrep.2018.05.009. eCollection 2018.

The seeds germination, stem and root elongation of water lettuces () were used to evaluate the phytotoxicity of water and soil of Champotón River, Campeche, Mexico. water and soil sample were collected from two sampling sites. Lettuce seeds were exposed to three different dilutions of water and aqueous extract of soil. Significant differences on germination, root and stem elongation of lettuce were detected. Water showed more phytotoxic effect than aqueous extract of soil and inhibitory concentration 50 (IC) for radicle exposed to river water was 52% while stem elongation was 69%. Due to paucity the previously available phytotoxicological studies onto Champotón River, it is now essential to allocate time and resources to consider development of suitable chronic phytotoxicity tests.

利用水浮莲的种子萌发、茎和根的伸长来评估墨西哥坎佩切州钱波顿河的水和土壤的植物毒性。从两个采样点采集了水和土壤样本。将生菜种子暴露于水和土壤水提取物的三种不同稀释液中。检测到生菜在萌发、根和茎伸长方面存在显著差异。水比土壤水提取物表现出更强的植物毒性作用，暴露于河水的胚根的半数抑制浓度（IC）为52%，而茎伸长的半数抑制浓度为69%。由于之前关于钱波顿河的植物毒理学研究较少，现在有必要投入时间和资源来考虑开展合适的慢性植物毒性试验。