The role of polyamines in the regulation of the plasma membrane and the tonoplast proton pumps under salt stress

Janicka, Małgorzata; Kabała, Katarzyna; Młodzińska, Ewa; Kłobus, Grażyna

doi:10.1016/j.jplph.2009.09.010

Cited by 54 publications

(33 citation statements)

References 72 publications

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“…It means that the studied bean cultivar belongs to drought-sensitive plants. In another study, after 24 h of 200 mM NaCl treatment (like in our study), the levels of PAs in cucumber roots decreased (Janicka-Russak et al 2010). The cited authors suggested that PA levels decreased when the concentration of Na ?…”

Section: Discussionsupporting

confidence: 77%

Sorbitol and NaCl stresses affect free, microsome-associated and thylakoid-associated polyamine content in Zea mays and Phaseolus vulgaris

Legocka

Sobieszczuk‐Nowicka

2011

Acta Physiol Plant

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Most of commercially important crops, including maize and common bean, are sensitive to water deficit and salinity. Polyamines are considered to be osmotic and salt tolerance modulators and biochemical indicators of these stresses. In the present study, we measured organ-specific changes in levels of free, microsome-and thylakoid-associated polyamines in leaves and roots of maize and common bean plants exposed for 24 h to osmotic and saline stresses. Putrescine levels were generally higher in the studied organs of both species and under both stresses; only in the roots of salt-treated bean it considerably decreased. In both species, salt stress (200 mM NaCl) induced a significant decrease in free spermidine in roots. We observed a significant decrease in the contents of all polyamines associated with the microsomes isolated from the roots of maize and bean growing in sorbitol and salt conditions. Also the microsomes isolated from the leaves of stressed plants were characterized by the lower contents of polyamines. Our data showed a reduction of putrescine content, with significantly decreased spermidine and spermine levels in thylakoids isolated from the chloroplasts of maize and bean plants growing under both stresses. The results indicate that the studied maize and bean cultivars are rather drought-sensitive. Additionally, microsome-and thylakoid-associated polyamines seem to be good markers of plant stress tolerance.

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Section: Discussionsupporting

confidence: 77%

Sorbitol and NaCl stresses affect free, microsome-associated and thylakoid-associated polyamine content in Zea mays and Phaseolus vulgaris

Legocka

Sobieszczuk‐Nowicka

2011

Acta Physiol Plant

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“…At the same time, inhibitory effects of PAs on the vacuolar H + -pump activity were also reported (Tang and Newton, 2005; Janicka-Russak et al, 2010). Interestingly, the steady state H + pumping was decreased by PAs, but the V-H + -ATPase activity was not significantly affected (Janicka-Russak et al, 2010).…”

Section: Polyamines Effects On the Vacuolar Cation Transportmentioning

confidence: 70%

“…Interestingly, the steady state H + pumping was decreased by PAs, but the V-H + -ATPase activity was not significantly affected (Janicka-Russak et al, 2010). This may imply that PAs act as uncouplers.…”

Section: Polyamines Effects On the Vacuolar Cation Transportmentioning

confidence: 99%

Polyamines control of cation transport across plant membranes: implications for ion homeostasis and abiotic stress signaling

2014

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Polyamines are unique polycationic metabolites, controlling a variety of vital functions in plants, including growth and stress responses. Over the last two decades a bulk of data was accumulated providing explicit evidence that polyamines play an essential role in regulating plant membrane transport. The most straightforward example is a blockage of the two major vacuolar cation channels, namely slow (SV) and fast (FV) activating ones, by the micromolar concentrations of polyamines. This effect is direct and fully reversible, with a potency descending in a sequence Spm4+ > Spd3+ > Put2+. On the contrary, effects of polyamines on the plasma membrane (PM) cation and K+-selective channels are hardly dependent on polyamine species, display a relatively low affinity, and are likely to be indirect. Polyamines also affect vacuolar and PM H+ pumps and Ca2+ pump of the PM. On the other hand, catabolization of polyamines generates H2O2 and other reactive oxygen species (ROS), including hydroxyl radicals. Export of polyamines to the apoplast and their oxidation there by available amine oxidases results in the induction of a novel ion conductance and confers Ca2+ influx across the PM. This mechanism, initially established for plant responses to pathogen attack (including a hypersensitive response), has been recently shown to mediate plant responses to a variety of abiotic stresses. In this review we summarize the effects of polyamines and their catabolites on cation transport in plants and discuss the implications of these effects for ion homeostasis, signaling, and plant adaptive responses to environment.

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“…Some reports suggest that, polyamines improve ionic equilibrium by modifying the plasma membrane to overcome the osmotic stress since the expression of some genes belonging to signaling pathway related with salt stress were not altered in spermine deficient mutant. Moreover, spermine seemed to modulate Ca 2+ permeable channels and change Ca 2+ allocation restraining the entry of Na + /K + to the cytoplasm (Yamaguchi et al, 2006; Janicka-Russak et al, 2010; Najmeh et al, 2012; Velarde-Buendia et al, 2012). Other reports described that spermidine or putrescine are the polyamines conferring protection under salt stress, although it is difficult to support this conclusion, since putrescine or spermidine can be inter-converted (Quinet et al, 2010; Saleethong et al, 2011).…”

Section: Polyamines and Stressmentioning

confidence: 99%

Stress and polyamine metabolism in fungi

Valdés-Santiago

Ruíz-Herrera

2014

Front. Chem.

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Fungi, as well as the rest of living organisms must deal with environmental challenges such as stressful stimuli. Fungi are excellent models to study the general mechanisms of the response to stress, because of their simple, but conserved, signal-transduction and metabolic pathways that are often equivalent to those present in other eukaryotic systems. A factor that has been demonstrated to be involved in these responses is polyamine metabolism, essentially of the three most common polyamines: putrescine, spermidine and spermine. The gathered evidences on this subject suggest that polyamines are able to control cellular signal transduction, as well as to modulate protein-protein interactions. In the present review, we will address the recent advances on the study of fungal metabolism of polyamines, ranging from mutant characterization to potential mechanism of action during different kinds of stress in selected fungal models.

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The role of polyamines in the regulation of the plasma membrane and the tonoplast proton pumps under salt stress

Cited by 54 publications

References 72 publications

Sorbitol and NaCl stresses affect free, microsome-associated and thylakoid-associated polyamine content in Zea mays and Phaseolus vulgaris

Sorbitol and NaCl stresses affect free, microsome-associated and thylakoid-associated polyamine content in Zea mays and Phaseolus vulgaris

Polyamines control of cation transport across plant membranes: implications for ion homeostasis and abiotic stress signaling

Stress and polyamine metabolism in fungi

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