Anatomical characteristics and enzymes of the sucrose metabolism and their relationship with latex yield in the rubber tree (Hevea brasiliensis Muell. Arg.)

Mesquita,Alessandro Carlos; Oliveira,Luiz Edson Mota de; Mazzafera,Paulo; Delú-Filho,Nelson

Anatomical characteristics and enzymes of the sucrose metabolism and their relationship with latex yield in the rubber tree (Hevea brasiliensis Muell. Arg.)

Rubber production is dependent on the availability of carbohydrates in the tissues engaged in latex synthesis. In this study three rubber tree clones were used to study the protein profile, the activities of invertase and sucrose synthase in the latex and anatomical characteristics of the bark, as well as to establish a possible relationship with latex production. The clones used in the study, RRIM 600, GT 1 and Fx2261, differed in latex productivity, from high to low in this order. Although present, few differences were observed in the latex protein profile obtained by denaturing electrophoresis. The activity of neutral invertase was higher than the acidic isoform, and both activities were higher in the most productive clones RRIM 600 and GT 1. The same was observed for sucrose synthase but it is suggested that invertase may play a more important role in sucrose cleavage in the latex. The anatomical measurements showed that the number of lactiferous cells and lactiferous rings per mm², and lactiferous cell diameter were higher only in the most productive clone RRIM 600. Together, invertase activity and anatomical measurements might be useful to distinguish highly productive rubber tree clones.

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Main Authors:	Mesquita,Alessandro Carlos, Oliveira,Luiz Edson Mota de, Mazzafera,Paulo, Delú-Filho,Nelson
Format:	Digital revista
Language:	English
Published:	Brazilian Journal of Plant Physiology 2006
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000200002
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id	oai:scielo:S1677-04202006000200002
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spelling	oai:scielo:S1677-042020060002000022006-09-27Anatomical characteristics and enzymes of the sucrose metabolism and their relationship with latex yield in the rubber tree (Hevea brasiliensis Muell. Arg.)Mesquita,Alessandro CarlosOliveira,Luiz Edson Mota deMazzafera,PauloDelú-Filho,Nelson Hevea brasiliensis invertase lacticiferous vessels latex rubber sucrose synthase Rubber production is dependent on the availability of carbohydrates in the tissues engaged in latex synthesis. In this study three rubber tree clones were used to study the protein profile, the activities of invertase and sucrose synthase in the latex and anatomical characteristics of the bark, as well as to establish a possible relationship with latex production. The clones used in the study, RRIM 600, GT 1 and Fx2261, differed in latex productivity, from high to low in this order. Although present, few differences were observed in the latex protein profile obtained by denaturing electrophoresis. The activity of neutral invertase was higher than the acidic isoform, and both activities were higher in the most productive clones RRIM 600 and GT 1. The same was observed for sucrose synthase but it is suggested that invertase may play a more important role in sucrose cleavage in the latex. The anatomical measurements showed that the number of lactiferous cells and lactiferous rings per mm², and lactiferous cell diameter were higher only in the most productive clone RRIM 600. Together, invertase activity and anatomical measurements might be useful to distinguish highly productive rubber tree clones.info:eu-repo/semantics/openAccessBrazilian Journal of Plant PhysiologyBrazilian Journal of Plant Physiology v.18 n.2 20062006-06-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000200002en10.1590/S1677-04202006000200002
institution	SCIELO
collection	OJS
country	Brasil
countrycode	BR
component	Revista
access	En linea
databasecode	rev-scielo-br
tag	revista
region	America del Sur
libraryname	SciELO
language	English
format	Digital
author	Mesquita,Alessandro Carlos Oliveira,Luiz Edson Mota de Mazzafera,Paulo Delú-Filho,Nelson
spellingShingle	Mesquita,Alessandro Carlos Oliveira,Luiz Edson Mota de Mazzafera,Paulo Delú-Filho,Nelson Anatomical characteristics and enzymes of the sucrose metabolism and their relationship with latex yield in the rubber tree (Hevea brasiliensis Muell. Arg.)
author_facet	Mesquita,Alessandro Carlos Oliveira,Luiz Edson Mota de Mazzafera,Paulo Delú-Filho,Nelson
author_sort	Mesquita,Alessandro Carlos
title	Anatomical characteristics and enzymes of the sucrose metabolism and their relationship with latex yield in the rubber tree (Hevea brasiliensis Muell. Arg.)
title_short	Anatomical characteristics and enzymes of the sucrose metabolism and their relationship with latex yield in the rubber tree (Hevea brasiliensis Muell. Arg.)
title_full	Anatomical characteristics and enzymes of the sucrose metabolism and their relationship with latex yield in the rubber tree (Hevea brasiliensis Muell. Arg.)
title_fullStr	Anatomical characteristics and enzymes of the sucrose metabolism and their relationship with latex yield in the rubber tree (Hevea brasiliensis Muell. Arg.)
title_full_unstemmed	Anatomical characteristics and enzymes of the sucrose metabolism and their relationship with latex yield in the rubber tree (Hevea brasiliensis Muell. Arg.)
title_sort	anatomical characteristics and enzymes of the sucrose metabolism and their relationship with latex yield in the rubber tree (hevea brasiliensis muell. arg.)
description	Rubber production is dependent on the availability of carbohydrates in the tissues engaged in latex synthesis. In this study three rubber tree clones were used to study the protein profile, the activities of invertase and sucrose synthase in the latex and anatomical characteristics of the bark, as well as to establish a possible relationship with latex production. The clones used in the study, RRIM 600, GT 1 and Fx2261, differed in latex productivity, from high to low in this order. Although present, few differences were observed in the latex protein profile obtained by denaturing electrophoresis. The activity of neutral invertase was higher than the acidic isoform, and both activities were higher in the most productive clones RRIM 600 and GT 1. The same was observed for sucrose synthase but it is suggested that invertase may play a more important role in sucrose cleavage in the latex. The anatomical measurements showed that the number of lactiferous cells and lactiferous rings per mm², and lactiferous cell diameter were higher only in the most productive clone RRIM 600. Together, invertase activity and anatomical measurements might be useful to distinguish highly productive rubber tree clones.
publisher	Brazilian Journal of Plant Physiology
publishDate	2006
url	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202006000200002
work_keys_str_mv	AT mesquitaalessandrocarlos anatomicalcharacteristicsandenzymesofthesucrosemetabolismandtheirrelationshipwithlatexyieldintherubbertreeheveabrasiliensismuellarg AT oliveiraluizedsonmotade anatomicalcharacteristicsandenzymesofthesucrosemetabolismandtheirrelationshipwithlatexyieldintherubbertreeheveabrasiliensismuellarg AT mazzaferapaulo anatomicalcharacteristicsandenzymesofthesucrosemetabolismandtheirrelationshipwithlatexyieldintherubbertreeheveabrasiliensismuellarg AT delufilhonelson anatomicalcharacteristicsandenzymesofthesucrosemetabolismandtheirrelationshipwithlatexyieldintherubbertreeheveabrasiliensismuellarg
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Anatomical characteristics and enzymes of the sucrose metabolism and their relationship with latex yield in the rubber tree (Hevea brasiliensis Muell. Arg.)

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