SciELO - Scientific Electronic Library Online

 
vol.33 issue2Aleurodicus juleikae Bondar (Hemiptera: Aleyrodidae): Morphology of the pupa, infested plants and observations on the predisposing factors for colonization in an urban environment Lima, Peru author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Idesia (Arica)

On-line version ISSN 0718-3429

Abstract

BASTIAS, Elizabeth; GONZALEZ-MORO, María B  and  GONZALEZ-MURUA, Carmen. Combined effects of excess boron and salinity on root histology of Zea mays L. amylacea from the Lluta Valley (Arica, Chile). Idesia [online]. 2015, vol.33, n.2, pp.09-20. ISSN 0718-3429.  http://dx.doi.org/10.4067/S0718-34292015000200002.

Cell structure and alterations in tissue organization were analyzed for roots of Zea mays L. amylacea as a consequence of high salinity and boron (B) levels. Saline treatment concentrations were 100 mM NaCl (Low salinity, L) and 430 mM NaCl (High salinity, H). An excess of B was supplied as boric acid to obtain 20 (334 µM) and 40 (668 µM) mg B kg-1 in the nutrient solution for 20 days. Our results complement other studies on the amylacea ecotype and confirm the high degree of tolerance to salinity and excess B shown by this variety. The application of B under no salt and low salinity conditions did not result in structure changes in root cortex cells nor the vascular cylinder. Under high salinity conditions amylacea root cells showed slight alterations, such as an increase in the number of rows of cells. These high salinity conditions did not result in thickness of the stele.

Keywords : Amylacea; boron; histological; root; salinity.

        · abstract in Spanish     · text in English     · English ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License