Effect of polyamines on physio-chemical and biochemical parameters of citrus rootstocks under NaCl stress

Goswami, A.K.; Dubey, A. K.; Singh, Arun Kumar; Singh, Sanjay K.; Srivastav, Manish; Prakash, Jai; Awasthi, O. P.; Singh, Kanhaiya; Goswami, Suneha

doi:10.5958/0974-0112.2016.00105.5

Cited by 3 publications

(5 citation statements)

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“…35 Nevertheless, exogenous application of different PAs, regardlessthe concentrations, reversed the negative effects of salinity and enhanced the overall growth of citrus plants. 34,35,47,[124][125][126] Moreover, the PAs-treated citrus plants maintained higher gas-exchange and chlorophyll fluorescencecharacteristics when exposed to salt stress. 35 Generally, most of the previous studies showed that putrescine and spermidine fluctuated and showed a varied response to salt stress (Table 3).…”

Section: Role Of Pas In Citrus Response(s) To Salinitymentioning

confidence: 91%

“…121 In addition, soil salinization reduces citrus growth, decreases the fruit yield and quality, 123 causes nutrient deficiencies or imbalances, 115 and impairs photosynthetic activity. 124 In addition, salt stress led to a significant reduction in the gasexchange and chlorophyll fluorescencecharacteristicsin Bakraii (C. reticulata × C. limetta) seedlings including relative chlorophyll contents, chlorophyll fluorescence yields (F v /F m ), net photosynthetic and respiration rates, 51 net photosynthetic rate (P N ), stomatal conductance (g s ), and intercellular CO 2 concentration (C i ). 35 Nevertheless, exogenous application of different PAs, regardlessthe concentrations, reversed the negative effects of salinity and enhanced the overall growth of citrus plants.…”

Section: Role Of Pas In Citrus Response(s) To Salinitymentioning

confidence: 99%

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The unknown soldier in citrus plants: polyamines-based defensive mechanisms against biotic and abiotic stresses and their relationship with other stress-associated metabolites

Nehela

Killiny

2020

Plant Signaling & Behavior

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Citrus plants are challenged by a broad diversity of abiotic and biotic stresses, which definitely alter their growth, development, and productivity. In order to survive the various stressful conditions, citrus plants relay on multi-layered adaptive strategies, among which is the accumulation of stress-associated metabolites that play vital and complex roles in citrus defensive responses. These metabolites included amino acids, organic acids, fatty acids, phytohormones, polyamines (PAs), and other secondary metabolites. However, the contribution of PAs pathways in citrus defense responses is poorly understood. In this review article, we will discuss the recent metabolic, genetic, and molecular evidence illustrating the potential roles of PAs in citrus defensive responses against biotic and abiotic stressors. We believe that PAs-based defensive role, against biotic and abiotic stress in citrus, is involving the interaction with other stress-associated metabolites, particularly phytohormones. The knowledge gained so far about PAsbased defensive responses in citrus underpins our need for further genetic manipulation of PAs biosynthetic genes to produce transgenic citrus plants with modulated PAs content that may enhance the tolerance of citrus plants against stressful conditions. In addition, it provides valuable information for the potential use of PAs or their synthetic analogs and their emergence as a promising approach to practical applications in citriculture to enhance stress tolerance in citrus plants.

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Section: Role Of Pas In Citrus Response(s) To Salinitymentioning

confidence: 91%

Section: Role Of Pas In Citrus Response(s) To Salinitymentioning

confidence: 99%

The unknown soldier in citrus plants: polyamines-based defensive mechanisms against biotic and abiotic stresses and their relationship with other stress-associated metabolites

Nehela

Killiny

2020

Plant Signaling & Behavior

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“…In this study, leaf proline concentration increased with increasing salinity in all the cultivars but to a greater extent in NB-5 as compared to the proline levels in control plants. Among citrus rootstocks, salt tolerant Attani-1 showed relatively higher increase in leaf proline concentration at 50 mM salinity than salt sensitive Attani-2 and Jatti Khatti (Singh et al 2014).…”

Section: Physiological Parametersmentioning

confidence: 91%

“…In salinized plants, osmotic stress triggers the accumulation of reactive oxygen species such as hydroxyl radicals (OH) and superoxide anions (O 2 -) to excessive levels resulting in oxidative damage to the membrane lipids and proteins and the eventual disintegration of cell membranes, higher cell permeability and solute efflux. Genotypic differences for salt induced membrane injury in citrus (Singh et al 2014) and bael (Singh et al 2016) can be ascribed to the differences in the lipid composition of plasma membranes as certain lipid classes may have relatively better stability under saline conditions. Relative water content of a leaf indicates its hydration status, i.e.…”

Section: Ion Partitioningmentioning

confidence: 99%

Genotypic differences for salt tolerance in bael (Aegle marmelos) cultivars

et al. 2023

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Salinity induced changes in physiological relations and the concomitant effects on plant growth were recorded in four bael (Aegle marmelos Correa) cultivars, viz. NB-5, NB-9, CB-1 and CB-2. Plants raised in normal soil (ECe 1.3 dS/m) were irrigated with tap (ECiw 0.5 dS/m) and saline (ECiw 3 and 6 dS/m) waters. Data were recorded for growth, physiological parameters and mineral nutrition 180 days after imposing the salt treatments. NB-5 outperformed other cultivars under saline conditions by maintaining higher leaf chlorophyll and proline levels, retaining Na+ ions in stem and root tissues and by preferentially accumulating K+ and Ca2+ ions to overcome the toxic effects of Na+. Break down of salt tolerance in other cultivars at 6 dS/m salinity can be explained by build up of Na+ to the toxic levels and an accompanying decrease in leaf and stem K+ concentrations. Based on these findings, bael cultivar NB-5 appears to be suitable for commercial cultivation in salt-affected soils.

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“…Chlorophyll loss in salt stressed bael cultivars can be attributed to higher cell membrane injury, excessive leaf Na + and decrease in leaf hydration (Singh et al 2015). Salinity induced cell membrane disintegration and loss of enzymatic activities can hasten the depletion of leaf chlorophyll in salinized plants (Singh et al 2014).…”

Section: Physiological Relations In Leavesmentioning

confidence: 99%

Evaluation of guava (Psidium guajava) and bael (Aegle marmelos) under shallow saline watertable conditions

2018

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Growth, physiological activities and leaf ionic relations were studied in guava (Psidium guajava L.) cv. Allahabad Safeda and bael (Aegle marmelos Correa) cv. NB-5 planted under shallow saline watertable conditions. Marginally saline (MSW; ECIW 4 dS/m) and saline (SW; 6 dS/m) waters were applied either in cyclic (C) mode with the best available water (BAW; 2.8 dS/m) or regularly (R) to impose five salinity levels: control (BAW), CMSW (MSW and BAW in cyclic mode), RMSW (regular application of MSW), CSW (SW and BAW in cyclic mode) and RSW (regular application of SW). Data were recorded 120 days after salt treatment (DAST). In CSW and RSW treatments, salt injury symptoms (leaf yellowing, marginal scorch and chlorosis) appeared around 60 DAST in both the crops. Although plant height and stem girth were relatively less affected, branch and leaf emergence considerably decreased with increase in salinity giving the salinized plants a sparse look. Regular irrigation with 6 dS/m water caused substantial reductions in net photosynthesis (37-45%), photochemical efficiency (Fv/Fm ratio; 11-21%) and total soluble sugars (â‰ˆ30%); and increase in proline, Na+ and Cl- levels in leaves. Leaf proline was nearly fivefold higher in guava and threefold higher in bael at 6 dS/m salinity than BAW irrigated plants. Both the crops exhibited â‰ˆ8 fold higher leaf Na+/K+ ratio and considerable increase in leaf Cl- when continuously irrigated with 6 dS/m water. Plant growth, physiological attributes and leaf ionic composition in CMSW treatment were comparable to BAW treated plants indicating that marginally saline water (ECIW â‰ˆ 3-4 dS/m) can be used to irrigate guava cv. Allahabad Safeda and bael cv. NB-5 planted in saline soils.

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Effect of polyamines on physio-chemical and biochemical parameters of citrus rootstocks under NaCl stress

Cited by 3 publications

References 0 publications

The unknown soldier in citrus plants: polyamines-based defensive mechanisms against biotic and abiotic stresses and their relationship with other stress-associated metabolites

The unknown soldier in citrus plants: polyamines-based defensive mechanisms against biotic and abiotic stresses and their relationship with other stress-associated metabolites

Genotypic differences for salt tolerance in bael (Aegle marmelos) cultivars

Evaluation of guava (Psidium guajava) and bael (Aegle marmelos) under shallow saline watertable conditions

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