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Potential of cassava clones enriched with β‐carotene and lycopene for zinc biofortification under different soil Zn conditions
Author(s) -
Corguinha Ana Paula B,
Carvalho Camila A,
de Souza Guilherme A,
de Carvalho Teotonio S,
Vieira Eduardo A,
Fialho Josefino F,
Guilherme Luiz Roberto G
Publication year - 2018
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.9231
Subject(s) - biofortification , lycopene , micronutrient , carotene , crop , carotenoid , biology , micronutrient deficiency , zinc deficiency (plant disorder) , zinc , agronomy , microbiology and biotechnology , plant breeding , soil fertility , horticulture , food science , soil water , chemistry , ecology , organic chemistry
BACKGROUND Zinc (Zn) deficiency is a major human health concern worldwide, and biofortification (genetic and agronomic) is a complementary solution for increasing micronutrient contents, including Zn. Cassava ( Manihot esculenta Crantz) has been used for Zn biofortification because it is an important staple crop in most countries affected by malnutrition and Zn deficiency. Thus studies on biofortification of this crop can improve its nutritional quality. Zn content in cassava clones enriched with β‐carotene or lycopene and cultivated under different areas and soil managements was investigated to evaluate the influence of genotypic variation and agronomic management on Zn status in the plant. RESULTS A clone‐specific response to total Zn content in the soil was found, with clones 26, 215, and 240 (β‐carotene enriched) and clones 341 and 395 (lycopene enriched) being the most responsive. For both experiments, there was a positive interaction between total soil Zn and Zn content in the roots. CONCLUSIONS Our results suggest that, by combining plant breeding and agronomic strategies, it is possible to enrich cassava roots with both zinc and β‐carotene or lycopene. © 2018 Society of Chemical Industry