Details zur Publikation

Referenztyp Zeitschriften
DOI / URL Link
Titel (primär) Root responses to soil Ni heterogeneity in a hyperaccumulator and a non-accumulator species
Autor Moradi, A.B.; Conesa, H.M.; Robinson, B.H.; Lehmann, E.; Kaestner, A.; Schulin, R.;
Journal / Serie Environmental Pollution
Erscheinungsjahr 2009
Department HDG;
Band/Volume 157
Heft 8-9
Sprache englisch;
Keywords Berkheya coddii; Cicer arietinum; Neutron radiography; Nickel hyperaccumulator; Root growth; Root response
Abstract We compared root responses of the Ni-hyperaccumulator plant Berkheya coddii Rossler with the non-accumulator plant Cicer arietinum L to Ni heterogeneity in soil. We grew plants in growth containers filled with control soil, homogeneously spiked, and heterogeneously spiked soil with Ni concentrations of 62 and 125 mg kg(-1). Neutron radiography (NR) was used to observe the root distribution and the obtained images were analysed to reveal the root volumes in the spiked and unspiked segments of the growth container. There was no significant difference in root distribution pattern of B. coddii among different concentrations of Ni. Unlike B. coddii, the roots of C arietinum initially grew into the spiked segments. However, the later developing roots did not penetrate the spiked segment suggesting an avoidance strategy. Our results indicate that, B. coddii does not forage towards the Ni-rich patches, although presence of Ni in soil changes its root morphology.
ID 415
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=415
Moradi, A.B., Conesa, H.M., Robinson, B.H., Lehmann, E., Kaestner, A., Schulin, R. (2009):
Root responses to soil Ni heterogeneity in a hyperaccumulator and a non-accumulator species
Environ. Pollut. 157 (8-9), 2189 - 2196