ISSN:
1573-5036
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Studies were conducted to determine whether Fe uptake and transport in maize (Zea mays L.) is controlled inside or outside the root. Two maize genotypes exhibiting wide differences in Fe uptake and utilization were used. They were the Fe-efficient genotype WF9 and the Fe-inefficient genotype ys1/ys1. Iron-stressed WF9 produced higher amounts of H-ions and ‘reductant’ in nutrient solutions and reduced more Fe at the root surface than ys1/ys1. These properties were measured outside the root and they were associated with increased Fe uptake by WF9. When WF9 and ys1/ys1 were grown together in the same container, these properties did not benefit Fe uptake and utilization in ys1/ys1. Thus, we conclude, Fe-efficiency in WF9 and ys1/ys1 is controlled inside the root. re]19731029
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00010522
