Polyamines and Their Roles in the Alleviation of Ion Toxicities in Plants

Lutts, Stanley; Hausman, Jean-François; Quinet, Muriel; Lefèvre, Isabelle S.

doi:10.1007/978-1-4614-4747-4_12

Cited by 24 publications

(14 citation statements)

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“…Polyamines are present in all organisms and are involved in the control of plant growth and development during the whole cycle, from germination to fruit maturation. Small aliphatic amines (Put, Spd, Spm) are also involved in plant response to abiotic stresses and assume positive functions in free radical scavenging, stabilization of biological membranes, regulation of ion homeostasis and delaying of stress‐induced senescence processes (Lutts et al ). In the present study, the shoot polyamine concentrations were always higher in the halophyte S. chilense than in the glycophyte S. lycopersicum .…”

Section: Discussionmentioning

confidence: 99%

“…It might be argued that precursors are produced in the roots and then translocated to the shoots but SAMS4 expression was also inhibited by NaCl in the roots while SAMDC was not affected. The SAMDC activity is frequently considered as an important limiting factor in PAs synthesis (Lutts et al ). The SAMDC gene was clearly more expressed in S. lycopersicum than in S. chilense , while an inverse trend was recorded for PAs accumulation.…”

Section: Discussionmentioning

confidence: 99%

“…Polyamines (PAs) are polycationic organic compounds involved in various aspects of plant development as well as in stress responses and they assume numerous protecting functions in salt‐treated plants (Hu et al , Lutts et al ). Polyamines and ethylene share a common precursor [S‐adenosyl‐L‐Methionine (SAM)], and the biosynthesis of these molecules is often considered as competitive (Pandey et al , Lutts et al ) although Quinet et al () showed that there is no direct antagonism between PAs and ethylene pathways in rice. Transgenic tomato plants overexpressing SAM decarboxylase accumulate high concentration of PAs and showed improved tolerance to salinity (Hazarika and Rajam ).…”

Section: Introductionmentioning

confidence: 99%

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Salicylic acid differently impacts ethylene and polyamine synthesis in the glycophyte Solanum lycopersicum and the wild‐related halophyte Solanum chilense exposed to mild salt stress

Gharbi

Martínez

Benahmed

et al. 2016

Physiologia Plantarum

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This study aimed to determine the effects of exogenous application of salicylic acid (SA) on the toxic effects of salt in relation to ethylene and polyamine synthesis, and to correlate these traits with the expression of genes involved in ethylene and polyamine metabolism in two tomato species differing in their sensitivity to salt stress, Solanum lycopersicum cv Ailsa Craig and its wild salt-resistant relative Solanum chilense. In S. chilense, treatment with 125 mM NaCl improved plant growth, increased production of ethylene, endogenous salicylic acid and spermine. The production was related to a modification of expression of genes involved in ethylene and polyamine metabolism. In contrast, salinity decreased plant growth in S. lycopersicum without affecting endogenous ethylene, salicylic or polyamine concentrations. Exogenous application of salicylic acid at 0.01 mM enhanced shoot growth in both species and affected ethylene and polyamine production in S. chilense. Concomitant application of NaCl and salicylic acid improved osmotic adjustment, thus suggesting that salt and SA may act in synergy on osmolyte synthesis. However, the beneficial impact of exogenous application of salicylic acid was mitigated by salt stress since NaCl impaired endogenous SA accumulation in the shoot and salicylic acid did not improve plant growth in salt-treated plants. Our results thus revealed that both species respond differently to salinity and that salicylic acid, ethylene and polyamine metabolisms are involved in salt resistance in S. chilense.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Salicylic acid differently impacts ethylene and polyamine synthesis in the glycophyte Solanum lycopersicum and the wild‐related halophyte Solanum chilense exposed to mild salt stress

Gharbi

Martínez

Benahmed

et al. 2016

Physiologia Plantarum

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“…The most abundant plant polyamines include putrescine (Put, 1, 4-diaminobutane), spermidine (Spd, N -3-aminopropyl-1, 4-diaminobutane) and spermine (Spm, bis (N -3-aminopropyl)-1,4-diaminobutane). Beside these, cadaverine (Cad, 1, 5-diaminopentane) has also been detected in several plant species, in particular in Gramineae, Leguminoseae and Solanaceae (Lutts et al, 2013). Another polyamine, thermospermine-a structural isomer of spermineis synthesized by the action of thermospermine synthase (Takano et al, 2012).…”

Section: Polyamines Overviewmentioning

confidence: 99%

Polyamines as redox homeostasis regulators during salt stress in plants

Saha

Brauer

Sengupta

et al. 2015

Front. Environ. Sci.

175

108

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The balance between accumulation of stress-induced polyamines and reactive oxygen species (ROS) is arguably a critical factor in plant tolerance to salt stress. Polyamines are compounds, which accumulate in plants under salt stress and help maintain cellular ROS homeostasis. In this review we first outline the role of polyamines in mediating salt stress responses through their modulation of redox homeostasis. The two proposed roles of polyamines in regulating ROS-as antioxidative molecules and source of ROS synthesis-are discussed and exemplified with recent studies. Second, the proposed function of polyamines as modulators of ion transport is discussed in the context of plant salt stress. Finally, we highlight the apparent connection between polyamine accumulation and programmed cell death induction during stress. Thus, polyamines have a complex functional role in regulating cellular signaling and metabolism during stress. By focusing future efforts on how polyamine accumulation and turnover is regulated, research in this area may provide novel targets for developing stress tolerance.

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“…Diversos autores observaram estreita relação entre o acúmulo de prolina e de poliaminas em plantas sob estresse, pelo fato de elas compartilharem o mesmo precursor, a ornitina, nas rotas de biossíntese (Alcázar et al, 2010;Quinet et al, 2010;Filippou et al, 2013Filippou et al, , 2014Lutts et al, 2013;Kotakis et al, 2014). Portanto, é relevante averiguar a possiblidade de a putrescina melhorar as respostas de plantas sob estresse abiótico, mediante a avaliação do crescimento e a determinação dos teores de prolina.…”

Section: Introductionunclassified

Crescimento e conteúdo de prolina em plântulas de guandu submetidas a estresse osmótico e à putrescina exógena

Monteiro¹,

Cruz

Nardin

et al. 2014

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi verificar o efeito da aplicação da poliamina putrescina no acúmulo de prolina e no crescimento inicial de plântulas de guandu cultivadas sob estresse hídrico ou salino, e avaliar se esta poliamina pode ser usada como atenuadora desses estresses. Sementes de duas cultivares de guandu, BRS Mandarim e Caqui, foram germinadas em caixas gerbox forradas com papel de filtro umedecido com 0,0, -0,2, -0,3, -0,4, -0,5 MPa de PEG 6000 ou 0, 20, 40, 60, 80 e 120 mmol L -1 de NaCl, na ausência (0 mmol L -1 ) ou na presença (0,5 mmol L -1 ) de putrescina. Utilizou-se o delineamento inteiramente casualizado, em arranjo fatorial 2x5x2 e 2x6x2 (duas cultivares, cinco níveis de deficiência hídrica ou seis níveis de estresse salino, e presença ou ausência de putrescina), com quatro repetições. O crescimento das plântulas é acentuadamente reduzido pelas condições de restrição hídrica e salinidade. A putrescina exógena incrementa, sob ambos os estresses, os teores de prolina nas plântulas de guandu, especialmente na cultivar BRS Mandarin, e atenua os efeitos da deficiência hídrica moderada nas cultivares estudadas. Os estresses de restrição hídrica e de salinidade causam acúmulo de prolina na parte aérea e nas raízes de ambas as cultivares. A prolina pode ser considerada um bom indicador bioquímico e fisiológico desses estresses em plântulas de guandu.Termos para indexação: Cajanus cajan, indicador bioquímico, poliamina, restrição hídrica, salinidade, solutos compatíveis.Growth and proline content in pigeon pea seedlings subjected to osmotic stress and to exogenous putrescine Abstract -The objective of this work was to verify the effect of the application of the polyamine putrescine on the accumulation of proline and on the early seedling growth of pigeon pea subjected to water or salt stress, and to evaluate whether this polyamine can be used to alleviate these stresses. Seeds of two cultivars of pigeon pea, BRS Mandarim and Caqui, were germinated in gerbox boxes lined with filter papers soaked with 0.0, -0.2, -0.3, -0.4, -0.5 MPa PEG 6000 or 0, 20, 40, 60, 80, and 120 mmol L -1 NaCl, in the absence (0 mmol L -1 ) or presence (0.5 mmol L -1 ) of putrescine. A completely randomized design was used, in a 2x5x2 and 2x6x2 factorial arrangement (two cultivars, five levels of drought or six levels of salt stress, and presence or absence of putrescine), with four replicates. Seedling growth is highly reduced by water restriction and salinity conditions. Exogenous putrescine increases, under both stresses, the proline contents in pigeon pea seedlings, especially in the cultivar BRS Mandarin, and alleviates the effects of moderate water deficiency on the studied cultivars. Water restriction and salinity stresses cause accumulation of proline content in shoots and roots of both cultivars. Proline can be considered a good biochemical and physiological indicator of these stresses in pigeon pea seedlings.Index terms: Cajanus cajan, biochemical indicator, polyamine, water restriction, salinity, compatible so...

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Polyamines and Their Roles in the Alleviation of Ion Toxicities in Plants

Cited by 24 publications

References 261 publications

Salicylic acid differently impacts ethylene and polyamine synthesis in the glycophyte Solanum lycopersicum and the wild‐related halophyte Solanum chilense exposed to mild salt stress

Salicylic acid differently impacts ethylene and polyamine synthesis in the glycophyte Solanum lycopersicum and the wild‐related halophyte Solanum chilense exposed to mild salt stress

Polyamines as redox homeostasis regulators during salt stress in plants

Crescimento e conteúdo de prolina em plântulas de guandu submetidas a estresse osmótico e à putrescina exógena

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