Agriculture Reference
In-Depth Information
is related to some alteration in the movement of Fe through the phloem
[6,18,49,60; see Use of mutants…). This paves the way to get pea seeds with
higher Fe content once the
DGL
, and its function, can be deciphered. The
knowledge and adequate manipulation of the DGL function could allow the
obtention of high-Fe pea seeds but without the Fe toxicity problems caused by
the
dgl
mutation.
C
ONCLUSION
The research aimed to decipher the
brz
and
dgl
mutations can open the
way to obtain pea cultivars more tolerant to calcareous soils and to get pea
seeds with higher Fe content. The knowledge obtained with these mutants
could also be applied to other plant species. The study of the regulation of Fe
deficiency responses by using these pea mutants (and other approaches) is not
solely important in relation to Fe nutrition but also in relation to other aspects
related to plant mineral nutrition and to nodulation. As examples, it should be
mentioned that these mutants are also affected in the nodulation process and in
the accumulation of other elements besides Fe, such as the micronutrients Zn
and Mn, and the toxic element Al.
R
EFERENCES
[1]
Kobayashi, T. & Nishizawa, N.K. (2012). Iron uptake, translocation and
regulation in higher plants.
Ann. Rev. Plant Biol
,
63
, 131-152.
[2]
Grillet, L., Mari, S. & Schmidt, W. (2014). Iron in seeds-loading
pathways and subcellular localization.
Front. Plant Sci
.,
4
, 535.
doi:10.3389/ fpls.2013.00535
[3]
Brear, E.M., Day, D.A. & Smith, P.M.C. (2013). Iron: an essential
micronutrient for the legume-rhizobium symbiosis.
Front. Plant Sci
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4
,
359. doi:10.3389/ fpls.2013.00359
[4]
Lindsay, W.L. (1995). Chemical reactions in soils that affect iron
availability to plants. A quantitative approach.
In J. Abadía J (Ed.),
Iron
nutrition in soils and plants
(pp. 7-14). Dordrecht, The Netherlands:
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[5]
García, M.J., García-Mateo, M.J., Lucena C., Romera, F.J., Rojas, C.L.,
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