African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6578

Short Communication

Starch accumulation in cassava roots: Spatial and temporal distribution

Priscila Gonzales Figueiredo1*, Marina Aparecida de Moraes-Dallaqua2, Silvio José Bicudo2 and Fábio Yomei Tanamati1
1Departamento de Produção e Melhoramento Vegetal e Horticultura, Faculdade de Ciências Agronômicas, FCA. Rua José Barbosa de Barros, 1780 - Fazenda Lageado. Caixa Postal 237, 18610 - 307. Botucatu, S.P., Brazil. 2Departamento de Botânica do Instituto de Biociência da Universidade Estadual Paulista, UNESP - Campus de Botucatu, Caixa Postal 510 - CEP: 18618-000 - Botucatu, S.P., Brazil.
Email: [email protected]

  •  Accepted: 17 June 2013
  •  Published: 30 November 2013

Abstract

The relationship between starch and morpho-physiology aspects of cassava plant has not been identified. Considering this aspects, the present study showed the temporal and spatial distribution of starch grains in storage roots of cassava, variety IAC 576-70 with 90 and 120 days after planting. From these evaluations, a concentration of starch around the secondary xylem vessels of the cassava tuberous roots was observed, which may be related to the movement of organic solutes in the xylem vessels, water flow and the occurrence of the symptoms of the physiological deterioration in these roots.

 

Key words: Manihot esculenta Crantz., anatomy, histochemical test.