2007
DOI: 10.1590/s2236-89062007000200003
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Alterações anatômicas e fisiológicas em Setaria anceps Stapf ex Massey e Paspalum paniculatum L. sob condições de déficit hídrico

Abstract: -(Anatomical and physiological alterations in Setaria anceps Stapf ex Massey and Paspalum paniculatum L. under water deficit conditions). Both Setaria anceps (setária) and Paspalum paniculatum (paspalo) species are tolerant to soil drought water deficiency and flooding. The aim of this work was evaluate anatomical, ecophysiological and metabolic alterations on setária and paspalo leaves and roots when submitted to soil water deficit conditions. Eleven days after the beginning of water restriction, few variatio… Show more

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Cited by 60 publications
(37 citation statements)
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References 38 publications
(27 reference statements)
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“…Paspalum plants submitted to water deficiency conditions presented groups of bulliform cells with an increase in volume (Melo et al, 2007). This characteristic is similar to that seen in U. brizantha in an advanced stage of DPS ( Figure 4O), but in reverse environmental conditions.…”
Section: Resultssupporting
confidence: 79%
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“…Paspalum plants submitted to water deficiency conditions presented groups of bulliform cells with an increase in volume (Melo et al, 2007). This characteristic is similar to that seen in U. brizantha in an advanced stage of DPS ( Figure 4O), but in reverse environmental conditions.…”
Section: Resultssupporting
confidence: 79%
“…This characteristic may be attributable to the limited absorption of nutrients by the roots, due to malfunction of the conductive vessels. In Setaria anceps Stapf, the thickness of the foliar limbo of the vascular bundles and the fiber layer of the basal portion of the vascular bundle was lower in plants under hydric deficiency, compared to the control plants (Melo et al, 2007).…”
Section: Resultsmentioning
confidence: 78%
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“…Melo et al (2007) (Santos 2009). No presente trabalho, verifi cou-se que, em geral, a concentração deste polissacarídeo foi mais elevada nos rizomas das plantas submetidas à suspensão de rega, embora, não tenham sido verifi cadas diferenças estatisticamente significativas.…”
Section: Discussionunclassified
“…Foram realizadas secções paradérmicas à mão livre das faces abaxial e adaxial da epiderme e, ainda, secções transversais em micrótomo de mesa, no quarto par de folíolos, a partir da base da folha, com auxílio de lâminas de aço descartáveis, no Laboratório de Anatomia Vegetal da Universidade Federal de Lavras (MELO et al, 2007). As secções foram clarificadas em hipoclorito de sódio 50% por 10 minutos, lavadas duas vezes em água destilada por 10 minutos, coradas com safranina 1% (secções paradérmicas) e safrablau 1% (secções transversais) por 30 segundos, sendo, então, lavadas em água destilada e montadas em lâmina com glicerina 50% (KRAUS; ARDUIM, 1997).…”
Section: Methodsunclassified