Boron influence on concentration of polyols and other sugars in Eucalyptus


Autoria(s): Leite,Susi Meire Maximino; Valle,Celina Ferraz do; Bonine,César Augusto Valencise; Marino,Celso Luís
Data(s)

01/10/2008

Resumo

Although the functions of the element Boron (B) in plants have not been sufficiently clarified, several hypotheses have been raised. Some of the functions attributed to this element are synthesis and transport of carbohydrates. To evaluate the effect of B on the synthesis of some polyols and sugars in Eucalyptus grandis and hybrids "urograndis", these species were submitted to situations of supply and restriction of B. The experiment was carried out in a greenhouse, arranged in a randomized block design in a 2 x 2 factorial scheme, with 5 replicates of each genotype. The B levels were provided in the form of nutrient solution. No significant difference was observed in the content of mannitol, sorbitol, myo-inositol and scyllo-inositol and sugars α-glucose and β-glucose between E. grandis and hybrids. Arabinose was the only one to present a higher content in E. grandis on restriction of B. The effect of the presence of B was very expressive, but regarding B supply, the plants showed significant increase in the synthesis of the compounds evaluated.

Formato

text/html

Identificador

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622008000500005

Idioma(s)

en

Publicador

Sociedade de Investigações Florestais

Fonte

Revista Árvore v.32 n.5 2008

Palavras-Chave #Mannitol #metabolism of sugars in plants #sorbitol
Tipo

journal article