Potential Applications of Polyamines in Agriculture and Plant Biotechnology

Tiburcio, Antonio F.; Alcázar, Rubén

doi:10.1007/978-1-4939-7398-9_40

Cited by 42 publications

(33 citation statements)

References 84 publications

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“…Polyamine homeostasis is determined by PA metabolism, conjugation, interconversion, chemical alteration and transport (Moschou and Roubelakis-Angelakis, 2014; Handa et al., 2018; Nguyen et al., 2018; Tiburcio and Alcazar, 2018; Podlesakova et al., 2019). Biochemical effects of PAs have been unraveled in many physiological processes, primarily in stability and function of proteins and nucleic acids (Handa et al., 2018), partly due to their positive charge that enables them to electrostatically interact with polyanionic molecules inside the cell.…”

Section: Introductionmentioning

confidence: 99%

Polyamine Catabolism in Plants: A Universal Process With Diverse Functions

et al. 2019

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Polyamine (PA) catabolic processes are performed by copper-containing amine oxidases (CuAOs) and flavin-containing PA oxidases (PAOs). So far, several CuAOs and PAOs have been identified in many plant species. These enzymes exhibit different subcellular localization, substrate specificity, and functional diversity. Since PAs are involved in numerous physiological processes, considerable efforts have been made to explore the functions of plant CuAOs and PAOs during the recent decades. The stress signal transduction pathways usually lead to increase of the intracellular PA levels, which are apoplastically secreted and oxidized by CuAOs and PAOs, with parallel production of hydrogen peroxide (H 2 O 2 ). Depending on the levels of the generated H 2 O 2 , high or low, respectively, either programmed cell death (PCD) occurs or H 2 O 2 is efficiently scavenged by enzymatic/nonenzymatic antioxidant factors that help plants coping with abiotic stress, recruiting different defense mechanisms, as compared to biotic stress. Amine and PA oxidases act further as PA back-converters in peroxisomes, also generating H 2 O 2 , possibly by activating Ca 2+ permeable channels. Here, the new research data are discussed on the interconnection of PA catabolism with the derived H 2 O 2 , together with their signaling roles in developmental processes, such as fruit ripening, senescence, and biotic/abiotic stress reactions, in an effort to elucidate the mechanisms involved in crop adaptation/survival to adverse environmental conditions and to pathogenic infections.

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Section: Introductionmentioning

confidence: 99%

Polyamine Catabolism in Plants: A Universal Process With Diverse Functions

et al. 2019

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“…During the last two decades, multitudinous studies have highlighted the regulatory roles of PAs in different physiological processes of plant growth and development (for details see reviews by [85][86][87][88][89][90][91][92]. Most, if not all, of these studies demonstrated that PAs have many similarities with the five classic groups of phytohormones [93,94].…”

Section: Physiological Roles Of Pas In Citrusmentioning

confidence: 99%

“…The coordinated transition from vegetative phase to flowering, or reproductive phase in general, is controlled by a complex genetic network, several external environmental cues (such as photoperiod and temperature, etc.) [145][146][147], as well as by endogenous factors such as phytohormones [148] and PAs [92,93,128].…”

Section: Role Of Pas In the Flowering And Inflorescence Of Citrus Plantsmentioning

confidence: 99%

Citrus Polyamines: Structure, Biosynthesis, and Physiological Functions

Killiny

Nehela

2020

Plants

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Polyamines (PAs) are ubiquitous biogenic amines found in all living organisms from bacteria to Archaea, and Eukaryotes including plants and animals. Since the first description of putrescine conjugate, feruloyl-putrescine (originally called subaphylline), from grapefruit leaves and juice, many research studies have highlighted the importance of PAs in growth, development, and other physiological processes in citrus plants. PAs appear to be involved in a wide range of physiological processes in citrus plants; however, their exact roles are not fully understood. Accordingly, in the present review, we discuss the biosynthesis of PAs in citrus plants, with an emphasis on the recent advances in identifying and characterizing PAs-biosynthetic genes and other upstream regulatory genes involved in transcriptional regulation of PAs metabolism. In addition, we will discuss the recent metabolic, genetic, and molecular evidence illustrating the roles of PAs metabolism in citrus physiology including somatic embryogenesis; root system formation, morphology, and architecture; plant growth and shoot system architecture; inflorescence, flowering, and flowering-associated events; fruit set, development, and quality; stomatal closure and gas-exchange; and chlorophyll fluorescence and photosynthesis. We believe that the molecular and biochemical understanding of PAs metabolism and their physiological roles in citrus plants will help citrus breeding programs to enhance tolerance to biotic and abiotic stresses and provide bases for further research into potential applications.

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“…The pathway analysis shown in Table 3 clearly showed the cultivar difference in pathways involved in antioxidative stress (starch and sugar metabolic pathways, glycolytic pathways, amino acid synthesis metabolic pathways, phenylpropanoid metabolic pathways, and glutathione metabolic pathway metabolites) [33] as well as in the polyamine metabolic pathways, which are related to cell growth and proliferation [34,35] (Table 3). GABA is a non-proteinogenic amino acid accumulating under various stresses, and have suggested many important roles such as osmoregulation, signaling and others [36,37].…”

Section: Elevated Substances In Various Metabolic Pathways Are Associmentioning

confidence: 99%

Osmotic Stress Leads to Significant Changes in Rice Root Metabolic Profiles between Tolerant and Sensitive Genotypes

Matsunami

Toyofuku

Kimura

et al. 2020

Plants

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To breed osmotic stress-tolerant rice, the mechanisms involved in maintaining root growth under osmotic stress is important to elucidate. In this study, two rice (Oryza sativa L.) cultivars, IR 58 (stress-tolerant cultivar) and Basilanon (stress-sensitive cultivar), were used. After 1, 3, and 7 days of −0.42 MPa osmotic stress treatment induced by polyethylene glycol (PEG) 6000, root metabolomes were analyzed, yielding 276 detected compounds. Among 276 metabolites, 102 metabolites increased with the duration of the stress treatment in IR 58 roots, and only nine metabolites decreased. In contrast, 51 metabolites increased, and 45 metabolites decreased in Basilanon roots. Principal component analysis (PCA) scores clearly indicated differences between the cultivars and the treatments. Pathway analysis showed that the metabolites exhibiting stress-induced increases in IR 58 were those involved in sugar metabolism (such as sucrose 6’-phosphate, glucose 1-phosphate), polyamine and phenylpropanoid metabolisms (such as spermine, spermidine, gamma-aminobutyric acid (GABA)), and glutathione metabolism (such as glutathione, cysteine, cadaverine). IR 58 roots showed an increase in the most proteinogenic amino acids such as proline, serine, glutamine and asparagine. It was also maintained or increased the tricarboxylic acid (TCA) cycle intermediates (citric acid, cis-Aconitic acid, isocitric acid, fumaric acid, malic acid) under osmotic stress compared with that under control. Therefore, IR 58 actively synthesized various metabolites, and the increase in these metabolites contributed to the maintenance of important biological functions such as energy production and antioxidant defense to promote root development under osmotic stress.

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Potential Applications of Polyamines in Agriculture and Plant Biotechnology

Cited by 42 publications

References 84 publications

Polyamine Catabolism in Plants: A Universal Process With Diverse Functions

Polyamine Catabolism in Plants: A Universal Process With Diverse Functions

Citrus Polyamines: Structure, Biosynthesis, and Physiological Functions

Osmotic Stress Leads to Significant Changes in Rice Root Metabolic Profiles between Tolerant and Sensitive Genotypes

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