Rapid Movements of Plants Organs Require Solute-Water Cotransporters or Contractile Proteins

Morillón, Raphaël

doi:10.1104/pp.127.3.720

Cited by 22 publications

(29 citation statements)

References 12 publications

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“…However, examining Arabidopsis plants with reduced expression of PIP1s and PIP2s, produced by crossing two different antisense lines (double antisense plants), Martre et al (2002) found that, although the osmotic hydraulic conductivity of isolated root and leaf protoplasts was reduced by 5-to 30-fold, inhibition of PIP1 and PIP2 expression failed to affect the overall leaf hydraulic conductance, suggesting a major contribution of the apoplastic path to water movement. This has also been suggested in Arabidopsis, in which, under high transpiration rate conditions, a negative correlation between AQP abundance and transpiration rate has been established (Morillon et al 2001), strongly suggesting that the apoplastic path is the predominant one in the leaf.…”

Section: Introductionmentioning

confidence: 77%

The expression pattern of plasma membrane aquaporins in maize leaf highlights their role in hydraulic regulation

et al. 2008

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Leaves are key organs for evaporation and photosynthesis and play a crucial role in plant growth and development. In order to function properly, they need to maintain a balanced water content. Water movement through a leaf occurs by a combination of different pathways: water can follow an apoplastic route through the cell wall or a cell-to-cell route via the symplastic and transcellular paths. As aquaporins (AQPs) play an important role in regulating transcellular water flow and CO(2) conductance, studies on AQP mRNA and protein expression in leaves are essential to better understand their role in these physiological processes. Here, we quantified and localized the expression of Zea mays plasma membrane aquaporins (ZmPIPs, plasma membrane intrinsic proteins) in the leaf using quantitative RT-PCR and immunodetection. All ZmPIP genes except ZmPIP2;7 were expressed in leaves. Expression was found to be dependent on the developmental stage of the leaf tissue, with, in general, an increase in expression at the end of the elongation zone and a decrease in mature leaf tissue. These data correlated with the cell water permeability, as determined using a protoplast swelling assay. The diurnal expression of ZmPIPs was also investigated and expression was found to be higher during the first hours of the light period than at night. Immunocytochemical localization of four ZmPIP isoforms indicated that they are involved in leaf radial water movement, in particular in vascular bundles and the mesophyll.

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Section: Introductionmentioning

confidence: 77%

The expression pattern of plasma membrane aquaporins in maize leaf highlights their role in hydraulic regulation

et al. 2008

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“…Active proton-ATPase pumps (also called primary active transport mechanisms), have been proposed as not only the source of EP signals in plants (Bonza et al, 2001), but also channel opening (passive transport) (Martinoina et al, 2000;Morillon et al, 2001) and ion carriers (secondary active transport) (Maathius et al, 1997), both located in the plasmatic membrane, have been mentioned, considering that ion channel opening and closing enable an ion flux between the cytosol and the extracellular microenvironment, which creates EP differentials across the membrane (Gelli and Blumwald, 1997;Demidchik et al, 2006). Variations in Ca 2+ concentrations in the cytosol modify the catalytic activity of the enzyme calmonduline (Vian et al, 1996;Leon et al, 2001) as well as the activity of different protein kinases (CDPKs) dependent on Ca 2+ (White and Broadley, 2003;Ludwing et al, 2004;Medvedev, 2005).…”

Section: Discussionmentioning

confidence: 99%

Evidence for the transmission of information through electric potentials in injured avocado trees

Oyarce

Gurovich

2011

Journal of Plant Physiology

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“…Plant and animal annexins bind filamentous actin (F-actin) in vitro (Burgoyne and Geisow 1989;Calvert et al 1996); however, this ability has not been elucidated in vivo. Dynamic rearrangement of actin filaments during seismonastic movement has been reported (FleuratLessard et al 1988;Morillon et al 2001). In seismonastic and nyctinastic movements, calcium influx occurs from the apoplast through the plasma membrane (Campbell and Thomson 1977).…”

Section: Introductionmentioning

confidence: 94%

Biochemical and immunohistochemical characterization of Mimosa annexin

Hoshino

Hayashi

Temmei

et al. 2004

Planta

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To characterize the biochemical properties of plant annexin, we isolated annexin from Mimosa pudica L. and analyzed the biochemical properties conserved between Mimosa annexin and animal annexins, e.g. the ability to bind phospholipid and F-actin in the presence of calcium. We show that Mimosa annexin is distributed in a wide variety of tissues. Immunoblot analysis also revealed that the amount of annexin is developmentally regulated. To identify novel functions of Mimosa annexin, we examined the pattern of distribution and the regulation of its expression in the pulvinus. The amount of annexin in the pulvinus increased at night and was sensitive to abscisic acid; however, there was no detectable induction of annexin by cold or mechanical stimulus. Annexin distribution in the cell periphery during the daytime was changed to a cytoplasmic distribution at night, indicating that Mimosa annexin may contribute to the nyctinastic movement in the pulvinus.

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Rapid Movements of Plants Organs Require Solute-Water Cotransporters or Contractile Proteins

Cited by 22 publications

References 12 publications

The expression pattern of plasma membrane aquaporins in maize leaf highlights their role in hydraulic regulation

The expression pattern of plasma membrane aquaporins in maize leaf highlights their role in hydraulic regulation

Evidence for the transmission of information through electric potentials in injured avocado trees

Biochemical and immunohistochemical characterization of Mimosa annexin

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