Exogenously applied polyamines ameliorate osmotic stress-induced damages and delay leaf rolling by improving the antioxidant system in maize genotypes

Caliskan, Nihal Kutlu; Kadıoğlu, Asim; Güler, Neslihan Saruhan

doi:10.3906/biy-1608-55

Cited by 6 publications

(3 citation statements)

References 48 publications

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“…Studies of transgenic plants showed that the overproduction of PAs coincided with better stress tolerance [38]. Recent studies using exogenous PAs have shown that PAs enhanced wheat and maize tolerance to drought by increasing endogenous PAs [34,39]. PAs are closely associated with plant growth, stability of nucleic acids and membrane structure, stress resistance, and even plant survival [40][41][42].…”

Section: Introductionmentioning

confidence: 99%

Foliar Application of Polyamines Modulates Winter Oilseed Rape Responses to Increasing Cold

Jankovska-Bortkevič

Gavelienė

Šveikauskas

et al. 2020

Plants

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Cold stress is one of the most common abiotic stresses experienced by plants and is caused by low temperature extremes and variations. Polyamines (PAs) have been reported to contribute in abiotic stress defense processes in plants. The present study investigates the survival and responses of PA-treated non-acclimated (N) and acclimated (A) winter oilseed rape to increasing cold conditions. The study was conducted under controlled conditions. Seedlings were foliarly sprayed with spermidine (Spd), spermine (Spm), and putrescine (Put) solutions (1 mM) and exposed to four days of cold acclimation (4 °C) and two days of increasing cold (from −1 to −3 °C). Two cultivars with different cold tolerance were used in this study. The recorded traits included the percentage of survival, H+-ATPase activity, proline accumulation, and ethylene emission. Exogenous PA application improved cold resistance, maintained the activity of plasma membrane H+-ATPase, increased content of free proline, and delayed stimulation of ethylene emission under increasing cold. The results of the current study on winter oilseed rape revealed that foliar application of PAs may activate a defensive response (act as elicitor to trigger physiological processes), which may compensate the negative impact of cold stress. Thus, cold tolerance of winter oilseed rape can be enhanced by PA treatment.

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Section: Introductionmentioning

confidence: 99%

Foliar Application of Polyamines Modulates Winter Oilseed Rape Responses to Increasing Cold

Jankovska-Bortkevič

Gavelienė

Šveikauskas

et al. 2020

Plants

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“…Furthermore, Spd treatment enhanced the level of GA and improved the defense system by elevating antioxidative enzymatic activity and transcription mechanism, particularly ascorbic acid (AsA); additionally, various metabolites, including total phenols, flavonoids, proline, metallothionein, and cysteine content have been enhanced, reducing the destruction of photosynthetic apparatus under drought stress in white clover ( Li et al., 2016 ). Moreover, recent reports have documented that PAs improved tolerance to water deficit conditions by elevating endogenous PA content in wheat and maize ( Ebeed et al., 2017b ; Kutlu Çalişkan et al., 2017 ).…”

Section: Polyamines and Abiotic Stressesmentioning

confidence: 99%

Versatile roles of polyamines in improving abiotic stress tolerance of plants

et al. 2022

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In recent years, extreme environmental cues such as abiotic stresses, including frequent droughts with irregular precipitation, salinity, metal contamination, and temperature fluctuations, have been escalating the damage to plants’ optimal productivity worldwide. Therefore, yield maintenance under extreme events needs improvement in multiple mechanisms that can minimize the influence of abiotic stresses. Polyamines (PAs) are pivotally necessary for a defensive purpose under adverse abiotic conditions, but their molecular interplay in this remains speculative. The PAs’ accretion is one of the most notable metabolic responses of plants under stress challenges. Recent studies reported the beneficial roles of PAs in plant development, including metabolic and physiological processes, unveiling their potential for inducing tolerance against adverse conditions. This review presents an overview of research about the most illustrious and remarkable achievements in strengthening plant tolerance to drought, salt, and temperature stresses by the exogenous application of PAs. The knowledge of underlying processes associated with stress tolerance and PA signaling pathways was also summarized, focusing on up-to-date evidence regarding the metabolic and physiological role of PAs with exogenous applications that protect plants under unfavorable climatic conditions. Conclusively, the literature proposes that PAs impart an imperative role in abiotic stress tolerance in plants. This implies potentially important feedback on PAs and plants’ stress tolerance under unfavorable cues.

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“…There are also reports that show the exogenous application of PAs is an effective approach for improvement of crop tolerance to drought stress. Exogenous application of PAs alleviated the adverse effects of osmotic stress by modulating the antioxidant system and decreasing the H 2 O 2 and water loss, therefore enhanced drought tolerance in maize seedlings (Kutlu Calişkan et al, 2017). Drought tolerance of wheat plants increased by exogenous application of PAs through improving water status, accumulated osmoprotectants, and PAs and upregulated PAs biosynthetic genes (Ebeed et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Polyamines protect mung bean [Vigna radiata (L.) Wilczek] plants against drought stress

Sadeghipour

2019

Biologia Futura

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Introduction: Drought is a major environmental factor that limits crops productivity. To cope with the adverse effects of drought, plants have evolved various adaptive mechanisms, such as accumulation of osmolytes. Polyamines (PAs) play an important role in the plant growth and development and response to abiotic stresses. This experiment was conducted to investigate the role of exogenous PAs on drought tolerance of mung bean. Methods: Mung bean seeds were soaked in 0 or 100 μM putrescine (Put), spermidine (Spd), spermine (Spm), or their mixture for 10 hr. Then, treated seeds were sown in the field and were exposed to drought stress condition. Results: The growth attributes including shoot length, biomass, leaf area index (LAI), and grain yield markedly reduced due to drought stress. Drought stress also decreased soluble protein content, relative water content (RWC), chlorophyll value, stomatal conductance (g s ), and net photosynthetic rate (P N ) but increased malondialdehyde (MDA), total soluble sugars (TSS), and proline contents. Nonetheless, seed priming with the mixture of PAs alleviated adverse effects of drought stress and improved all growth attributes. Exogenous application of PAs also increased soluble protein content, RWC, chlorophyll value, P N , and more increased TSS and proline contents but decreased g s and MDA level. Discussion: These results indicated that seed treatment with PAs especially combined treatment of Put + Spd + Spm could enhance drought tolerance of mung bean plants through the accumulation of osmoprotectants, improving water status, chlorophyll value, and P N as well as reduction of oxidative damage.

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Exogenously applied polyamines ameliorate osmotic stress-induced damages and delay leaf rolling by improving the antioxidant system in maize genotypes

Cited by 6 publications

References 48 publications

Foliar Application of Polyamines Modulates Winter Oilseed Rape Responses to Increasing Cold

Foliar Application of Polyamines Modulates Winter Oilseed Rape Responses to Increasing Cold

Versatile roles of polyamines in improving abiotic stress tolerance of plants

Polyamines protect mung bean [Vigna radiata (L.) Wilczek] plants against drought stress

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