2011
DOI: 10.1590/s1806-66902011000300020
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Efeito da sacarose e do sorbitol na conservação in vitro de segmentos nodais de mangabeira

Abstract: Efeito da sacarose e do sorbitol na conservação in vitro de segmentos nodais de mangabeira Resumo -A mangabeira (Hancornia speciosa Gomes) é uma espécie cujas regiões de ocorrência natural vêm sofrendo grande pressão antrópica, a qual está provocando erosão genética em muitas populações nativas, principalmente da região Nordeste. Em virtude da existência de poucas coleções de mangabeira conservadas ex situ, evidencia-se a importância do desenvolvimento de um método alternativo e complementar para a conservação… Show more

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Cited by 13 publications
(21 citation statements)
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“…The analysis at 25°C showed that the lowest LA occurred in the medium with mannitol, and the highest LA occurred in the medium with sucrose only. This probably happened because of the plants maintained in the medium with available sucrose, as carbon source showed a greater metabolism and, consequently, a greater ethylene accumulation, a growth regulator responsible for leaf abscission (Santos et al, 2011). The temperature of 18°C was more effective in the maintenance of LA, especially in the treatments with sucrose, or sucrose + sorbitol.…”
mentioning
confidence: 99%
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“…The analysis at 25°C showed that the lowest LA occurred in the medium with mannitol, and the highest LA occurred in the medium with sucrose only. This probably happened because of the plants maintained in the medium with available sucrose, as carbon source showed a greater metabolism and, consequently, a greater ethylene accumulation, a growth regulator responsible for leaf abscission (Santos et al, 2011). The temperature of 18°C was more effective in the maintenance of LA, especially in the treatments with sucrose, or sucrose + sorbitol.…”
mentioning
confidence: 99%
“…This probably happened due to the osmoregulatory action of these sugar-alcohols. However, as these agents are poorly metabolized by plants, they can be harmful, depending on the amount in the environment, as occurred in the work of Santos et al (2011), who observed a high-leaf abscission due to the use of a high-concentration of sorbitol (40 g L -1 ). In the present study, no deleterious effect of osmotic agents was observed.…”
mentioning
confidence: 99%
“…Além disso, segundo Santos et al (2011) e Reed, Gupta e Uchendu (2013), a preservação de germoplasma in vitro apresenta, em médio prazo, um baixo custo econômico e algumas vantagens em comparação com a conservação no campo, como a redução do espaço de armazenamento e a rápida multiplicação de material vegetal livre de pragas e patógenos presentes no campo.…”
Section: Conservação In Vitrounclassified
“…In this way, it can be concluded that it is possible to make the storage of the species using these techniques. (SANTOS, et al, 2011;TREJGELL, KAMIŃSKA, TRETYN, 2015).…”
Section: Introductionmentioning
confidence: 99%