2012
DOI: 10.1590/s0103-84782012000500013
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Hiperidricidade: uma desordem metabólica

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Cited by 15 publications
(5 citation statements)
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References 44 publications
(83 reference statements)
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“…All these features were observed in explants cultivated at 8.0 μmol L -1 TDZ added to culture medium. Transfer shoots to the culture medium without any cytokinin in a timelymanner could be a solution (VASCONCELOS et al, 2012) to avoid such problems and therefore allow new shoots emergence or leaves formation with morphology and anatomy similar to that found in normal plants. Giri and Tamta (2011) working with Hedychium spicatum (white ginger lily), also found that the use of TDZ was more efficient in inducing a higher number of shoots, even though reduced in size, while KIN led to the formation of shoots with greater length, similar to results obtained in our study.…”
Section: Resultsmentioning
confidence: 99%
“…All these features were observed in explants cultivated at 8.0 μmol L -1 TDZ added to culture medium. Transfer shoots to the culture medium without any cytokinin in a timelymanner could be a solution (VASCONCELOS et al, 2012) to avoid such problems and therefore allow new shoots emergence or leaves formation with morphology and anatomy similar to that found in normal plants. Giri and Tamta (2011) working with Hedychium spicatum (white ginger lily), also found that the use of TDZ was more efficient in inducing a higher number of shoots, even though reduced in size, while KIN led to the formation of shoots with greater length, similar to results obtained in our study.…”
Section: Resultsmentioning
confidence: 99%
“…Além disso, as raízes de C. tweedii apresentaram aspecto de friáveis ou hiperidrícas, se mostrando muito frágeis e quebradiças, em todos os tratamentos estudados (Figura 1B, D, F, H), o que pode comprometer a qualidade do sistema radicial e posterior crescimento das mudas. A hiperidricidade, ou acúmulo anormal de água em células e tecidos vegetais, é uma desordem metabólica comum em micropropagação, sendo relacionada a vários fatores, entre eles, a espécie (Vasconcelos et al 2012) e reguladores vegetais, como citocininas (Coste et al 2011).…”
Section: Efeitos Das Espéciesunclassified
“…In the natural ventilation system, all stomata were located at the same level as the ordinary epidermal cells (Figure 2f). The occurrence of abnormal stomata in micropropagated plants from heterotrophic systems are reported in some species, such as grapevine (Machado & Biasi 2011), apple (Chakrabarty et al, 2006) and eucalyptus (Picoli et al, 2008), In these species, these abnormalities are due to hyperhydricity, which causes chemical damage to the cell wall surrounding the stomata orifice, creating cell walls with less callose, that lack the characteristic orientation of cellulose myofibrils (Vasconcelos et al, 2012). Thus, in culture conditions and factors associated with leaf hyperhydration seem to be linked to stomatal malfunction (remaining open) (Ziv & Ariel, 1994).…”
Section: Leaf Anatomymentioning
confidence: 99%