Biologia futura: the role of polyamine in plant science

Kamiab, Fereshteh; Tavassolian, Iraj; Hosseinifarahi, Mehdi

doi:10.1007/s42977-020-00027-3

Cited by 19 publications

(12 citation statements)

References 113 publications

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“…These amines serve as an N reserve for the plant, N:C ratio regulate, favour synthesis of pigments photosynthetic, acid nucleic and proteins. Spermidine applications elevate levels of endogenous PA, but the enzymes involved in its biosynthesis can be increased without altering PA degrading enzymes, such as occurs in zoysia grass subjected to saline stress [ 46 ], and therefore these triamine could improve photosynthetic activity and protein synthesis favouring the growth of P. coronopus [ 28 , 47 , 48 ]. On the other hand, SA is a phenolic secondary metabolite, although is more related to abiotic stress tolerance and defensive responses against pathogens, application SA can have beneficious effect on cell and vegetative growth, photosynthesis, and flowering in this halophyte [ 49 ].…”

Section: Discussionmentioning

confidence: 99%

“…On the other hand, CKs and auxins can have antagonistic effect at low to medium concentration, and only at higher concentration they have adjunctive effect [ 24 , 50 ]. With respect to gibberellins, little effect has in this halophyte, so the effect of each treatment may be genotype-dependent [ 48 ]. In saline conditions, the pretreatment Spd with salt was the most effective both in terms of dry weight and water content (B in Table 1 ).…”

Section: Discussionmentioning

confidence: 99%

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Plant Growth Regulators Application Enhance Tolerance to Salinity and Benefit the Halophyte Plantago coronopus in Saline Agriculture

Bueno

Cordovilla

2021

Plants

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Climate change, soil salinisation and desertification, intensive agriculture and the poor quality of irrigation water all create serious problems for the agriculture that supplies the world with food. Halophyte cultivation could constitute an alternative to glycophytic cultures and help resolve these issues. Plantago coronopus can be used in biosaline agriculture as it tolerates salt concentrations of 100 mM NaCl. To increase the salt tolerance of this plant, plant growth regulators such as polyamine spermidine, salicylic acid, gibberellins, cytokinins, and auxins were added in a hydroponic culture before the irrigation of NaCl (200 mM). In 45-day-old plants, dry weight, water content, osmolyte (sorbitol), antioxidants (phenols, flavonoids), polyamines (putrescine, spermidine, spermine (free, bound, and conjugated forms)) and ethylene were determined. In non-saline conditions, all plant regulators improved growth while in plants treated with salt, spermidine application was the most effective in improving growth, osmolyte accumulation (43%) and an increase of antioxidants (24%) in P. coronopus. The pretreatments that increase the sorbitol content, endogenous amines (bound spermine fraction), phenols and flavonoids may be the most effective in protecting to P. coronopus against stress and, therefore, could contribute to improving the tolerance to salinity and increase nutritional quality of P. coronopus.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Plant Growth Regulators Application Enhance Tolerance to Salinity and Benefit the Halophyte Plantago coronopus in Saline Agriculture

Bueno

Cordovilla

2021

Plants

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“…Changes in polyamine levels, including putrescine (Put), spermidine (Spd), spermine (Spm) and cadaverine (Cad), have been observed in plants subjected to different abiotic stresses such as drought, salinity, low and high temperature, nutrient deficiency and metal toxicity [21][22][23]. Polyamines are low-molecular-weight aliphatic nitrogen compounds positively charged at physiological pH.…”

Section: Introductionmentioning

confidence: 99%

Leafamine®, a Free Amino Acid-Rich Biostimulant, Promotes Growth Performance of Deficit-Irrigated Lettuce

Malécange

Pérez-Garcia

Citerne

et al. 2022

IJMS

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Water deficit causes substantial yield losses that climate change is going to make even more problematic. Sustainable agricultural practices are increasingly developed to improve plant tolerance to abiotic stresses. One innovative solution amongst others is the integration of plant biostimulants in agriculture. In this work, we investigate for the first time the effects of the biostimulant –Leafamine®–a protein hydrolysate on greenhouse lettuce (Lactuca sativa L.) grown under well-watered and water-deficit conditions. We examined the physiological and metabolomic water deficit responses of lettuce treated with Leafamine® (0.585 g/pot) or not. Root application of Leafamine® increased the shoot fresh biomass of both well-watered (+40%) and deficit-irrigated (+20%) lettuce plants because the projected leaf area increased. Our results also indicate that Leafamine® application could adjust the nitrogen metabolism by enhancing the total nitrogen content, amino acid (proline) contents and the total protein level in lettuce leaves, irrespective of the water condition. Osmolytes such as soluble sugars and polyols, also increased in Leafamine®-treated lettuce. Our findings suggest that the protective effect of Leafamine is a widespread change in plant metabolism and could involve ABA, putrescine and raffinose.

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“…There is a specific pattern of gibberellins concentrations and polyamines that induce the differentiation of vegetative buds into floral buds being that the crosstalk between polyamines and gibberellins can affect floral differentiation (Anwar et al, 2015;Qin et al, 2019;Kamiab et al, 2020). Nambeesan et al (2019) observed that polyamines, especially spermidine, interfere in the floral identity and development of tomato fruits affecting the GA metabolism and signaling.…”

Section: Discussionmentioning

confidence: 99%

Gibberellin and polyamines effects in growth and flowering of New Guinea impatiens

2021

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To meet the high demand of the consumer market for ornamental plants, various techniques are used to increase production and flowers quality, through growth regulators. Despite all the benefits arising from the use of regulators, it is essential to establish concentrations that meet the purpose of their use. The aim of the study was to evaluate the growing and flowering characteristics of Impatiens hawkeri, after the exogenous application of different dosages of spermine, spermidine and gibberellic acid. Two pulverizations were made separated by 15 days, with polyamines (500/2,000 and 1,000 μM), or gibberellic acid (50 and 100 μM), and for the control, water was used. The evaluated parameters were the number of leaves, plant height, number of flower buds, dry and fresh weights of the root system and the aerial parts, and also volume of the root system and the chlorophyll content (SPAD). The treatments with gibberellin caused higher averages in all measurements, except for SPAD. Based on the results obtained, the use of gibberellin with the dosage of 100 µM as a regulator is the most appropriate to meet the needs of the Impatiens hawkeri market with more vigorous plants and with a greater number of flowers.

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Biologia futura: the role of polyamine in plant science

Cited by 19 publications

References 113 publications

Plant Growth Regulators Application Enhance Tolerance to Salinity and Benefit the Halophyte Plantago coronopus in Saline Agriculture

Plant Growth Regulators Application Enhance Tolerance to Salinity and Benefit the Halophyte Plantago coronopus in Saline Agriculture

Leafamine®, a Free Amino Acid-Rich Biostimulant, Promotes Growth Performance of Deficit-Irrigated Lettuce

Gibberellin and polyamines effects in growth and flowering of New Guinea impatiens

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