Trophic Transfer without Biomagnification of Cadmium in a Soybean-Dodder Parasitic System
Cadmium (Cd) is among the most available and most toxic heavy metals taken up by plants from soil. Compared to the classic plant-animal food chains, the host-parasitic plant food chains have, thus far, been largely overlooked in the studies of Cd trophic transfer. To investigate the pattern of Cd tr...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-12-01
|
| Series: | Plants |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2223-7747/10/12/2690 |
| _version_ | 1797501297995284480 |
|---|---|
| author | Bin J. W. Chen Jing Xu Xinyu Wang |
| author_facet | Bin J. W. Chen Jing Xu Xinyu Wang |
| author_sort | Bin J. W. Chen |
| collection | DOAJ |
| description | Cadmium (Cd) is among the most available and most toxic heavy metals taken up by plants from soil. Compared to the classic plant-animal food chains, the host-parasitic plant food chains have, thus far, been largely overlooked in the studies of Cd trophic transfer. To investigate the pattern of Cd transfer during the infection of parasitic plants on Cd-contaminated hosts, we conducted a controlled experiment that grew soybeans parasitized by Chinese dodders (<i>Cuscuta chinensis</i>) in soil with different levels of Cd treatment, and examined the concentration, accumulation, allocation and transfer coefficients of Cd within this parasitic system. Results showed that among all components, dodders accounted for more than 40% biomass of the whole system but had the lowest Cd concentration and accumulated the least amount of Cd. The transfer coefficient of Cd between soybean stems and dodders was much lower than 1, and was also significantly lower than that between soybean stems and soybean leaves. All these features were continuously strengthened with the increase of Cd treatment levels. The results suggested no evidence of Cd biomagnification in dodders parasitizing Cd-contaminated hosts, and implied that the Cd transfer from hosts to dodders may be a selective process. |
| first_indexed | 2024-03-10T03:16:22Z |
| format | Article |
| id | doaj.art-3d863e3dcc2d473a9efa11a691eb47db |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-10T03:16:22Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-3d863e3dcc2d473a9efa11a691eb47db2023-11-23T10:11:46ZengMDPI AGPlants2223-77472021-12-011012269010.3390/plants10122690Trophic Transfer without Biomagnification of Cadmium in a Soybean-Dodder Parasitic SystemBin J. W. Chen0Jing Xu1Xinyu Wang2College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, ChinaCollege of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, ChinaCollege of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, ChinaCadmium (Cd) is among the most available and most toxic heavy metals taken up by plants from soil. Compared to the classic plant-animal food chains, the host-parasitic plant food chains have, thus far, been largely overlooked in the studies of Cd trophic transfer. To investigate the pattern of Cd transfer during the infection of parasitic plants on Cd-contaminated hosts, we conducted a controlled experiment that grew soybeans parasitized by Chinese dodders (<i>Cuscuta chinensis</i>) in soil with different levels of Cd treatment, and examined the concentration, accumulation, allocation and transfer coefficients of Cd within this parasitic system. Results showed that among all components, dodders accounted for more than 40% biomass of the whole system but had the lowest Cd concentration and accumulated the least amount of Cd. The transfer coefficient of Cd between soybean stems and dodders was much lower than 1, and was also significantly lower than that between soybean stems and soybean leaves. All these features were continuously strengthened with the increase of Cd treatment levels. The results suggested no evidence of Cd biomagnification in dodders parasitizing Cd-contaminated hosts, and implied that the Cd transfer from hosts to dodders may be a selective process.https://www.mdpi.com/2223-7747/10/12/2690<i>Cuscuta</i>food chainfeeding modeheavy metalholoparasitehost |
| spellingShingle | Bin J. W. Chen Jing Xu Xinyu Wang Trophic Transfer without Biomagnification of Cadmium in a Soybean-Dodder Parasitic System Plants <i>Cuscuta</i> food chain feeding mode heavy metal holoparasite host |
| title | Trophic Transfer without Biomagnification of Cadmium in a Soybean-Dodder Parasitic System |
| title_full | Trophic Transfer without Biomagnification of Cadmium in a Soybean-Dodder Parasitic System |
| title_fullStr | Trophic Transfer without Biomagnification of Cadmium in a Soybean-Dodder Parasitic System |
| title_full_unstemmed | Trophic Transfer without Biomagnification of Cadmium in a Soybean-Dodder Parasitic System |
| title_short | Trophic Transfer without Biomagnification of Cadmium in a Soybean-Dodder Parasitic System |
| title_sort | trophic transfer without biomagnification of cadmium in a soybean dodder parasitic system |
| topic | <i>Cuscuta</i> food chain feeding mode heavy metal holoparasite host |
| url | https://www.mdpi.com/2223-7747/10/12/2690 |
| work_keys_str_mv | AT binjwchen trophictransferwithoutbiomagnificationofcadmiuminasoybeandodderparasiticsystem AT jingxu trophictransferwithoutbiomagnificationofcadmiuminasoybeandodderparasiticsystem AT xinyuwang trophictransferwithoutbiomagnificationofcadmiuminasoybeandodderparasiticsystem |