Research output: Contribution to journal › Article › peer-review
Distribution of iron, manganese, and zinc in mature grain and their mobilization during germination and early seedling development in maize. / Bityutskii, Nikolai P.; Magnitskiy, Stanislav V.; Korobeynikova, Liydmila P.; Lukina, Elena I.; Soloviova, Alla N.; Patsevitch, Valentina G.; Lapshina, Irina N.; Matveeva, Galina V.
In: Journal of Plant Nutrition, Vol. 25, No. 3, 2002, p. 635-653.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Distribution of iron, manganese, and zinc in mature grain and their mobilization during germination and early seedling development in maize
AU - Bityutskii, Nikolai P.
AU - Magnitskiy, Stanislav V.
AU - Korobeynikova, Liydmila P.
AU - Lukina, Elena I.
AU - Soloviova, Alla N.
AU - Patsevitch, Valentina G.
AU - Lapshina, Irina N.
AU - Matveeva, Galina V.
N1 - Copyright: Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2002
Y1 - 2002
N2 - Distribution of iron (Fe), manganese (Mn), and zinc (Zn) in mature grains of maize (Zea mays L.) of 25 genotypes was studied. The highest concentrations of micronutrients were found in the seed coats and scutellum, while the lowest were found in the endosperm. The endosperm, scutellum, and seed coats contained between 60-80%, 15-35%, and 8-12% of the total grain micro-nutrients, respectively. Mobilization of Fe, Mn, and Zn from the scutellum and endosperm was studied in four genotypes of maize during 3-120h of germination and early seedling growth. Variation in original concentrations in the scutellums of the genotypes exceeded that observed in the endosperms. Genotypes were separated into several groups with high-Fe (144-168 μg g-1) and high-Zn (89-94 μg g-1) scutellum (cvs. Brewero yellow, Corriente de gallina), high-Mn (40-42 μg g-1) scutellum (cvs. Pusey blond, Brewero yellow), low-Fe (107-110 μg g-1) and low-Zn (76 μg g-1) scutellum (cvs. Pusey blond, Oregon grewn), and low-Mn (33-36 μg g-1) scutellum (cvs. Oregon grewn, Corriente de gallina). The type of kernel tissue influenced micronutrient mobility during germination. The highest share of freely leaked forms of micronutrients was generally observed for the genotypes with high-micronutrient scutellum. After the radicle protruded, the efflux of micronutrients from the scutellum was not dependent with original metal concentrations. The genotypes studied did not differ in the total efflux of minerals from the grain (endosperm + scutellum) measured 120 hr after grain soaking. The following sequence characterized efficiency of kernel-born metals utilization by the seedling: Fe < Mn ≥ Zn. Efficiency of mobile Zn utilization was specific to the growth of genotype. This index was found lowest for cvs. Brewero yellow and Pusey blond with low-weight seedlings. Removal of seed coats after 3 days of grain soaking did not influence dynamics of micronutrients in grains and seedlings of cv. Mestnaya. The possible pathways of micronutrient transport in seedlings are discussed in relation to original micronutrient distribution within the grain.
AB - Distribution of iron (Fe), manganese (Mn), and zinc (Zn) in mature grains of maize (Zea mays L.) of 25 genotypes was studied. The highest concentrations of micronutrients were found in the seed coats and scutellum, while the lowest were found in the endosperm. The endosperm, scutellum, and seed coats contained between 60-80%, 15-35%, and 8-12% of the total grain micro-nutrients, respectively. Mobilization of Fe, Mn, and Zn from the scutellum and endosperm was studied in four genotypes of maize during 3-120h of germination and early seedling growth. Variation in original concentrations in the scutellums of the genotypes exceeded that observed in the endosperms. Genotypes were separated into several groups with high-Fe (144-168 μg g-1) and high-Zn (89-94 μg g-1) scutellum (cvs. Brewero yellow, Corriente de gallina), high-Mn (40-42 μg g-1) scutellum (cvs. Pusey blond, Brewero yellow), low-Fe (107-110 μg g-1) and low-Zn (76 μg g-1) scutellum (cvs. Pusey blond, Oregon grewn), and low-Mn (33-36 μg g-1) scutellum (cvs. Oregon grewn, Corriente de gallina). The type of kernel tissue influenced micronutrient mobility during germination. The highest share of freely leaked forms of micronutrients was generally observed for the genotypes with high-micronutrient scutellum. After the radicle protruded, the efflux of micronutrients from the scutellum was not dependent with original metal concentrations. The genotypes studied did not differ in the total efflux of minerals from the grain (endosperm + scutellum) measured 120 hr after grain soaking. The following sequence characterized efficiency of kernel-born metals utilization by the seedling: Fe < Mn ≥ Zn. Efficiency of mobile Zn utilization was specific to the growth of genotype. This index was found lowest for cvs. Brewero yellow and Pusey blond with low-weight seedlings. Removal of seed coats after 3 days of grain soaking did not influence dynamics of micronutrients in grains and seedlings of cv. Mestnaya. The possible pathways of micronutrient transport in seedlings are discussed in relation to original micronutrient distribution within the grain.
UR - http://www.scopus.com/inward/record.url?scp=0036214002&partnerID=8YFLogxK
U2 - 10.1081/PLN-120003387
DO - 10.1081/PLN-120003387
M3 - Article
AN - SCOPUS:0036214002
VL - 25
SP - 635
EP - 653
JO - Journal of Plant Nutrition
JF - Journal of Plant Nutrition
SN - 0190-4167
IS - 3
ER -
ID: 75015169