دورية أكاديمية
A Trip Back Home: Resistance to Herbivores of Native and Non-Native Plant Populations of Datura stramonium
| العنوان: | A Trip Back Home: Resistance to Herbivores of Native and Non-Native Plant Populations of Datura stramonium |
|---|---|
| المؤلفون: | Núñez Farfán, Juan, Velázquez Márquez, Sabina, Torres García, Jesús R., Cruz, Iván M. de la, Arroyo Marín, Juan, Valverde, Pedro L., Matías, Javier D. |
| المساهمون: | Universidad de Sevilla. Departamento de Biología Vegetal y Ecología, Universidad Autónoma de México (UNAM) |
| بيانات النشر: | MDPI |
| سنة النشر: | 2024 |
| المجموعة: | idUS - Deposito de Investigación Universidad de Sevilla |
| مصطلحات موضوعية: | Datura stramonium, native and non-native populations, invasive species, tobacco flea beetle, datura striped beetle, tobacco weevill, enemy release hypothesis, increased competitive ability, tropane alkaloids, jimsonweed, toloache |
| الوصف: | When colonizing new ranges, plant populations may benefit from the absence of the checks imposed by the enemies, herbivores, and pathogens that regulated their numbers in their original range. Therefore, rates of plant damage or infestation by natural enemies are expected to be lower in the new range. Exposing both non-native and native plant populations in the native range, where native herbivores are present, can be used to test whether resistance mechanisms have diverged between populations. Datura stramonium is native to the Americas but widely distributed in Spain, where populations show lower herbivore damage than populations in the native range. We established experiments in two localities in the native range (Mexico), exposing two native and two non-native D. stramonium populations to natural herbivores. Plant performance differed between the localities, as did the abundance of the main specialist herbivore, Lema daturaphila. In Teotihuacán, where L. daturaphila is common, native plants had significantly more adult beetles and herbivore damage than non-native plants. The degree of infestation by the specialist seed predator Trichobaris soror differed among populations and between sites, but the native Ticumán population always had the lowest level of infestation. The Ticumán population also had the highest concentration of the alkaloid scopolamine. Scopolamine was negatively related to the number of eggs deposited by L. daturaphila in Teotihuacán. There was among-family variation in herbivore damage (resistance), alkaloid content (scopolamine), and infestation by L. daturaphila and T. soror, indicating genetic variation and potential for further evolution. Although native and non-native D. stramonium populations have not yet diverged in plant resistance/constitutive defense, the differences between ranges (and the two experimental sites) in the type and abundance of herbivores suggest that further research is needed on the role of resource availability and adaptive plasticity, specialized metabolites ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | Plants, 13 (1), 131.; UNAM - IN216620; https://doi.org/10.3390/plants13010131Test; https://idus.us.es/handle//11441/155261Test |
| الإتاحة: | https://doi.org/10.3390/plants13010131Test https://idus.us.es/handle//11441/155261Test |
| حقوق: | Atribución 4.0 Internacional ; http://creativecommons.org/licenses/by/4.0Test/ ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.66A4D952 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |