Idioma:

Genetic variation in plant below-ground response to elevated CO2 and two herbivore species

Vannette, Rachel L. ; Hunter, Mark D.

Plant and soil, 2014-11, Vol.384 (1-2), p.303-314 [Periódico revisado por pares]

Cham: Springer International Publishing

Texto completo disponível

Citações Citado por

Enviar para

Título:
Genetic variation in plant below-ground response to elevated CO2 and two herbivore species
Autor: Vannette, Rachel L. ; Hunter, Mark D.
Assuntos: Agronomy. Soil science and plant productions ; Animal, plant and microbial ecology ; Biological and medical sciences ; Biomass ; Biomedical and Life Sciences ; Carbon dioxide ; Ecology ; Economic plant physiology ; Fundamental and applied biological sciences. Psychology ; Fungi ; General agronomy. Plant production ; Genotype & phenotype ; Life Sciences ; Plant Physiology ; Plant Sciences ; Regular Article ; Soil science ; Soil Science & Conservation ; Soil-plant relationships. Soil fertility ; Soil-plant relationships. Soil fertility. Fertilization. Amendments ; Soils ; Symbiosis (nodules, symbiotic nitrogen fixation, mycorrhiza...)
É parte de: Plant and soil, 2014-11, Vol.384 (1-2), p.303-314
Descrição: Aims It is unclear how changing atmospheric conditions, including rising carbon dioxide concentration, influence interactions between above and below-ground systems and if intraspecific variation exists in this response. Methods We assessed interactive effects of atmospheric CO 2 concentration, above-ground herbivory, and plant genotype on root traits and mycorrhizal associations. Plants from five families of Asclepias syriaca , a perennial forb, were grown under ambient and elevated atmospheric CO 2 concentrations. Foliar herbivory by either lepidopteran caterpillars or phloem-feeding aphids was imposed. Mycorrhizal colonization, below-ground biomass, root biomass, and secondary defensive chemistry in roots were quantified. Results We observed substantial genetic variation among A. syriaca families in their mycorrhizal colonization levels in response to elevated CO 2 and herbivory treatments. Elevated CO 2 treatment increased root biomass in all genetic families, whereas foliar herbivory tended to decrease root biomass. Root cardenolide concentration and composition varied greatly among plant families, and elevated CO 2 treatment increased root cardenolides in two of the five plant families. Moreover, herbivores differentially affected the composition of cardenolides expressed below ground. Conclusions Increased atmospheric CO 2 has the potential to influence interactions among plants, herbivores and mycorrhizal fungi and intraspecific variation suggests that such interactions can evolve.
Editor: Cham: Springer International Publishing
Idioma: Inglês

Links

View record in Pascal Francis

Voltar para lista de resultados

Realização: Logos de Redes Sociais:

Genetic variation in plant below-ground response to elevated CO2 and two herbivore species

Vannette, Rachel L. ; Hunter, Mark D.

Cham: Springer International Publishing

Buscando em bases de dados remotas. Favor aguardar.