2003
DOI: 10.1016/s0098-8472(03)00021-2
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Changes in plasmodesmata frequency in vascular bundles of maize seedling leaf induced by growth at sub-optimal temperatures in relation to photosynthesis and assimilate export

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Cited by 39 publications
(26 citation statements)
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“…After three weeks of chilling treatment chilled plants had fewer leaves and internodes in comparison with non-chilled ones (Table 1, Figure 1A, B). Decrease in growth rate, but no effects on plant ontogeny, were observed by Nie and Baker (1991), Nie et al (1992), Sowinski et al (2003). Sowinski et al (2003) also found thicker leaf blades in chilled maize plants.…”
Section: Growth Characteristicsmentioning
confidence: 74%
“…After three weeks of chilling treatment chilled plants had fewer leaves and internodes in comparison with non-chilled ones (Table 1, Figure 1A, B). Decrease in growth rate, but no effects on plant ontogeny, were observed by Nie and Baker (1991), Nie et al (1992), Sowinski et al (2003). Sowinski et al (2003) also found thicker leaf blades in chilled maize plants.…”
Section: Growth Characteristicsmentioning
confidence: 74%
“…After penetration in leaves, glyphosate may be translocated both by phloem sieve tubes, which also involves plasmodesmata, and cell-tocell in the same symplastic domain via plasmodesmata, reaching all cells of the domain quickly (Franz et al, 1997;Jachetta et al, 1986). In fact, both translocations are complementary and non-competitive due to the fact that plasmodesmata act on loading and unloading the phloem (Sowinski et al, 2003). Glyphosate is one of the few studies where herbicide translocation via plasmodesmata is considered.…”
Section: Herbicide Translocation Through Plasmodesmatamentioning
confidence: 99%
“…Além disso, a condutância não depende somente do diâmetro do canal, mas também da afinidade entre as moléculas conduzidas e as proteí-nas que revestem o canal. Sterling et al (1990), trabalhando com transporte apoplástico e simplástico de bentazon, determinaram que o transporte da molécula do he rb ic id a fo i re du zi do pe la ap li ca çã o conjunta com CCCP, um inibidor exógeno do met abol ismo (Wa gatsuma, 1983 ;Zhang & Taylor, 1991;Rincon & Gonzales, 1992). Estes autores associaram a redução do transporte de bentazon com o aumento no gradiente de prótons entre células vizinhas.…”
unclassified
“…Após a penetração na folha, pode ser translocado tanto pelos tubos crivados do floema (Franz et al, 1997), como célula-a-célula via plasmodesmos (Jachetta et al, 1986), atingindo rapidamente todas as célul as do domín io. Na verdade, ambos os transportes são complementares e não-competitivos, pois os plasmodesmos atuam também nas operações de carga e descarga do floema (Sowinski et al, 2003). O glyphosate é um dos poucos exemplos estudados de translocação de herbicidas cuja importância dos plasmodesmos é considerada.…”
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