Differential allelopathy between genders of an invasive dioecious tree on desert plants
The Peruvian peppertree (Schinus molle) is a dioecious species from South America that was introduced into central Mexico five centuries ago. This tree has invaded abandoned agricultural fields from semiarid regions, where it can be found with several native succulent plants that have recolonized t...
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| Format: | Article |
| Language: | English |
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Sociedad Botánica de México, A. C.
2016-06-01
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| Series: | Botanical Sciences |
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| Online Access: | https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/522 |
| _version_ | 1811220226964979712 |
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| author | Marcela Avendaño-González Ernesto I. Badano Jorge E. Ramírez-Albores Joel Flores Jorge A. Flores-Cano |
| author_facet | Marcela Avendaño-González Ernesto I. Badano Jorge E. Ramírez-Albores Joel Flores Jorge A. Flores-Cano |
| author_sort | Marcela Avendaño-González |
| collection | DOAJ |
| description |
The Peruvian peppertree (Schinus molle) is a dioecious species from South America that was introduced into central Mexico five centuries ago. This tree has invaded abandoned agricultural fields from semiarid regions, where it can be found with several native succulent plants that have recolonized these areas. Although peppertrees have negative allelopathic effects on crops, their effects on these native plants remain unknown. Indeed, the allelopathy of peppertrees has only been tested for female individuals, while the allelopathic potential of male peppertrees has not been assessed yet. This study focused on these issues and assessed whether peppertrees affect germination of succulent plants from the Chihuahuan Desert and whether these effects differ between male and female trees. For this we conducted a series of germination bioassays where seeds of native species were watered with aqueous extracts of staminate flowers and leaves produced by male peppertrees, and with aqueous extracts of fruits and leaves produced by female peppertrees. Additionally, we conducted experiments where seeds of native species were sowed on soils collected beneath the canopy of both tree genders. The results of all these experiments indicated that both peppertree genders can reduce germination of native species, but also suggested that male peppertrees would have stronger allelopathic effects than female peppertrees. To our best knowledge, this is the first study reporting allelopathic effects of peppertrees on native plants from Mexico, but this is also the first study indicating differential gender effects for invasive dioecious species with allelopathic potential.
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| first_indexed | 2024-04-12T07:39:06Z |
| format | Article |
| id | doaj.art-a4270d21817c4a23809a0432b5d23f7f |
| institution | Directory Open Access Journal |
| issn | 2007-4298 2007-4476 |
| language | English |
| last_indexed | 2024-04-12T07:39:06Z |
| publishDate | 2016-06-01 |
| publisher | Sociedad Botánica de México, A. C. |
| record_format | Article |
| series | Botanical Sciences |
| spelling | doaj.art-a4270d21817c4a23809a0432b5d23f7f2022-12-22T03:41:52ZengSociedad Botánica de México, A. C.Botanical Sciences2007-42982007-44762016-06-0194210.17129/botsci.522Differential allelopathy between genders of an invasive dioecious tree on desert plantsMarcela Avendaño-González0Ernesto I. Badano1Jorge E. Ramírez-Albores2Joel Flores3Jorge A. Flores-Cano4División de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí, San Luis PotosíDivisión de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí, San Luis PotosíDivisión de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí, San Luis PotosíDivisión de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí, San Luis PotosíFacultad de Agronomía y Veterinaria, Universidad Autónoma de San Luis Potosí, San Luis Potosí The Peruvian peppertree (Schinus molle) is a dioecious species from South America that was introduced into central Mexico five centuries ago. This tree has invaded abandoned agricultural fields from semiarid regions, where it can be found with several native succulent plants that have recolonized these areas. Although peppertrees have negative allelopathic effects on crops, their effects on these native plants remain unknown. Indeed, the allelopathy of peppertrees has only been tested for female individuals, while the allelopathic potential of male peppertrees has not been assessed yet. This study focused on these issues and assessed whether peppertrees affect germination of succulent plants from the Chihuahuan Desert and whether these effects differ between male and female trees. For this we conducted a series of germination bioassays where seeds of native species were watered with aqueous extracts of staminate flowers and leaves produced by male peppertrees, and with aqueous extracts of fruits and leaves produced by female peppertrees. Additionally, we conducted experiments where seeds of native species were sowed on soils collected beneath the canopy of both tree genders. The results of all these experiments indicated that both peppertree genders can reduce germination of native species, but also suggested that male peppertrees would have stronger allelopathic effects than female peppertrees. To our best knowledge, this is the first study reporting allelopathic effects of peppertrees on native plants from Mexico, but this is also the first study indicating differential gender effects for invasive dioecious species with allelopathic potential. https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/522abandoned fieldscactiinterferencePeruvian peppertreesemiarid ecosystemsvegetation recovery |
| spellingShingle | Marcela Avendaño-González Ernesto I. Badano Jorge E. Ramírez-Albores Joel Flores Jorge A. Flores-Cano Differential allelopathy between genders of an invasive dioecious tree on desert plants Botanical Sciences abandoned fields cacti interference Peruvian peppertree semiarid ecosystems vegetation recovery |
| title | Differential allelopathy between genders of an invasive dioecious tree on desert plants |
| title_full | Differential allelopathy between genders of an invasive dioecious tree on desert plants |
| title_fullStr | Differential allelopathy between genders of an invasive dioecious tree on desert plants |
| title_full_unstemmed | Differential allelopathy between genders of an invasive dioecious tree on desert plants |
| title_short | Differential allelopathy between genders of an invasive dioecious tree on desert plants |
| title_sort | differential allelopathy between genders of an invasive dioecious tree on desert plants |
| topic | abandoned fields cacti interference Peruvian peppertree semiarid ecosystems vegetation recovery |
| url | https://www.botanicalsciences.com.mx/index.php/botanicalSciences/article/view/522 |
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