Selenium accumulation protects plants from herbivory by Orthoptera via toxicity and deterrence.

@article{Freeman2007SeleniumAP,
  title={Selenium accumulation protects plants from herbivory by Orthoptera via toxicity and deterrence.},
  author={John L. Freeman and Stormy Dawn Lindblom and Colin F. Quinn and Sirine C. Fakra and Matthew A. Marcus and Elizabeth A. H. Pilon-Smits},
  journal={The New phytologist},
  year={2007},
  volume={175 3},
  pages={
          490-500
        },
  url={https://api.semanticscholar.org/CorpusID:2330947}
}
It is demonstrated that both inorganic and organic forms of selenium protect plants from herbivory, and methylselenocysteine protected S. pinnata from invertebrate Herbivory and increased its long-term survival rate over an entire growth season.
View on PubMed
onlinelibrary.wiley.com
130 Citations
Highly Influential Citations
4
Background Citations
52
Methods Citations
4
Results Citations
1

130 Citations

The defensive benefit and flower number cost of selenium accumulation in Brassica juncea

The relatively low level of selenium accumulation in this species as compared to more extreme hyperaccumulators could reflect the minimum level necessary to enhance protection from herbivory.

Effects of selenium accumulation on reproductive functions in Brassica juncea and Stanleya pinnata

In cross-pollination of B. juncea plants with different Se levels, both the maternal and paternal Se level affected reproduction, but the maternal Se concentration had the most pronounced effect and Interestingly, high-Se maternal plants were most efficiently pollinated by Se-treated paternal plants.

Zinc accumulation and its effects on herbivory and competitive ability, in metallicolous populations of Rumex acetosa L.

This thesis investigated how manipulations influenced herbivory by generalist Helix aspersa Muller (Helicidae), and how plant competitive ability was determined by a combination of population identity, soil Zn concentration and presence of herbivores.

Selenium accumulation in the floral tissues of two Brassicaceae species and its impact on floral traits and plant performance

On the Ecology of Selenium Accumulation in Plants

Questions to address in future research are whether the ecological impacts of plant Se accumulation may affect species composition across trophic levels (favoring Se resistant taxa), and to what extent Se hyperaccumulators form a portal for Se into the local food chain and are important for Se cycling in the local ecosystem.

Hyperaccumulator Stanleya pinnata: In Situ Fitness in Relation to Tissue Selenium Concentration

Earlier studies have shown that Stanleya pinnata benefits from selenium hyperaccumulation through ecological benefits and enhanced growth. However, no investigation has assayed the effects of Se…

Selenium hyperaccumulation reduces plant arthropod loads in the field.

The effectiveness of selenium (Se) as an arthropod deterrent was investigated under field conditions and it is suggested that invertebrate herbivory may have contributed to the evolution of Se hyperaccumulation.

Selenium Hyperaccumulators Facilitate Selenium-Tolerant Neighbors via Phytoenrichment and Reduced Herbivory

Effect of Cadmium Accumulation on the Performance of Plants and of Herbivores That Cope Differently With Organic Defenses

The results suggest no interaction between cadmium-based and organic plant defences, in the system, which may be useful for plants living in heterogeneous environments, as they may use one or the other defence mechanism, depending on their relative performance in each environment.

Plant Accumulation of Sulfur’s Sister Element Selenium – Potential Applications and Ecological Implications

The ability of plants to (hyper)accumulate and volatilize Se may be used for phytoremediation of polluted soils or waters, and also to produce nutritionally enhanced crops, and the potential ecological implications are summarized.
...

52 References

Selenium accumulation protects Brassica juncea from invertebrate herbivory and fungal infection.

Se was shown to protect Indian mustard plants from fungal infection and from herbivory by caterpillars, but not by snails.

Selenium protects plants from phloem-feeding aphids due to both deterrence and toxicity.

Se can protect plants from feeding by aphids at leaf levels two orders of magnitude lower than those found in hyperaccumulators in the field, shed light on the possible functional significance of Se hyperaccUMulation.

Selenium-Tolerant Diamondback Moth Disarms Hyperaccumulator Plant Defense

Biotransfer Possibilities of Selenium from Plants Used in Phytoremediation

Results from all studies clearly show that Se absorbed by plants can be transferred biologically in an intentional or unintentional manner to insects and animals.

The defensive role of Ni hyperaccumulation by plants: a field experiment.

The first experiment to examine the defensive effectiveness of Ni hyperaccumulation under field conditions concluded that Ni was not an effective defense against these large herbivores, probably because their diets mix high-Ni S. polygaloides foliage with that of associated non-hyperaccumulating species.

Deterrence of herbivory by zinc hyperaccumulation in Thlaspi caerulescens (Brassicaceae)

The hypothesis that zinc hyperaccumulation benefits plants by deterring herbivory was tested by allowing three species of herbivores to choose between Thlaspi caerulescens (Brassicaceae) plants grown in low-Zn and Zn-amended culture solution.

Feeding preferences of spodoptera exigua in response to form and concentration of selenium

The toxicity of all of the tested forms of selenium, in combination with the lack of antifeedant activity of some compounds, has the potential to affect both the distribution and diversity of terrestrial herbivores in both agricultural and natural systems.

Ecotypic variation in selenium accumulation among populations of Stanleya pinnata.

Ecotypic variation in selenium (Se) hyperaccumulation in plants is reported here among populations of Stanleya pinnata (Brassicaceae), which has a broad biogeographical range in the western USA and exhibits significant ecotypic differences in Se accumulation.

SELENIUM IN HIGHER PLANTS.

Recent advances in the understanding of the plant's ability to metabolize Se into volatile Se forms (phytovolatilization) are discussed, along with the application of phytoremediation for the cleanup of Se contaminated environments.

SELENO-AMINO ACIDS IN SELENIUM-ACCUMULATING PLANTS.

...