Effect of seed priming with zeatin on<i>Secale cereale</i>L. growth and cytokinins homeostasis under hyperthermia

Веденічева, Н.П.; Futorna, Oksana; Shcherbatiuk, М. М.; Kosakivska, I.V.

doi:10.1080/15427528.2021.2000909

Cited by 6 publications

(5 citation statements)

References 52 publications

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“…Even the short treatment with low temperatures is very harmful for development of nonhardened rye seedlings (Kolupaev et al, 2019). Recently, we have shown that hyperthermia has a differential effect on the content of individual cytokinins and their localization in the shoots and roots of rye plants, which depend on stress duration (Vedenicheva et al, 2021). We were not able to find reports of such results on the response of the hormonal system of rye plants to cold stress.…”

Section: Introductionmentioning

confidence: 76%

Effect of low-temperature stress on the growth of plants of Secale cereale (Poaceae) and endogenous cytokinin content in roots and shoots

Веденічева¹,

Shcherbatiuk²,

Kosakivska³

2022

Ukr. Bot. J.

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Phytohormones play a key role in the regulation of plant acclimation to low temperature. To elucidate the role of cytokinins in rye plant response to chilling, we studied the dynamics of these hormones in shoots and roots under short-term and prolonged cold stress. The 7-day-old plants were exposed to cold stress (2 °C) for 2 h (alarm phase of response) or for 6 h for two days (acclimation phase of response). Endogenous content of cytokinins was analyzed by HPLC-MS method. Low temperature had a differential effect on the content of individual cytokinins and their localization in rye plants. During the short-term stress, a decrease in the content of active cytokinins (trans-zeatin and trans-zeatin riboside) in the roots and an increase in the shoots were shown. Prolonged low-temperature stress declined the amount of cytokinins except trans-zeatin riboside, which was detected in both roots and shoots. Significant rise in trans-zeatin riboside content in roots and shoots in this period evidenced an important role of this cytokinin during cold acclimation of rye plants.

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Section: Introductionmentioning

confidence: 76%

Effect of low-temperature stress on the growth of plants of Secale cereale (Poaceae) and endogenous cytokinin content in roots and shoots

Веденічева¹,

Shcherbatiuk²,

Kosakivska³

2022

Ukr. Bot. J.

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“…In the HPLC analyses, the phytohormone zeatin was also detected in the extract of Xylariaceae sp. This compound had already been found to affect the growth of rice plants under hyperthermia conditions 82 . In the greenhouse experiment in our study, the maximum temperature in late September to early October was quite high (Fig.…”

Section: Discussionmentioning

confidence: 97%

Plant-growth promoting activity of three fungal endophytes isolated from plants living in dehesas and their effect on Lolium multiflorum

García-Latorre

Rodrigo

Marín-Felix

et al. 2023

Sci Rep

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Endophytic fungi have been demonstrated to produce bioactive secondary metabolites, some of which promote plant growth. Three endophytic fungi isolated from healthy plants living in dehesas of Extremadura (Spain) were identified and evaluated for their ability to produce phytohormone-like substances, antioxidant activity, total polyphenol content, phosphate solubilization ability and siderophore and ammonia production. The filtrates and extracts produced by the three endophytes were applied to Lolium multiflorum seeds and seedlings under both in vitro and greenhouse conditions, to analyse their influence on plant growth traits such as germination, vigour index, chlorophyll data, number and length of leaves and roots, and dry weight. All three endophytes, which were identified as Fusarium avenaceum, Sarocladium terricola and Xylariaceae sp., increased the germination of L. multiflorum seeds by more than 70%. Shoot and root length, plant dry weight and the number of roots were positively affected by the application of fungal filtrates and/or extracts, compared with controls. The tentative HPLC–MS identification of phytohormone-like substances, such as gibberellin A2 and zeatin, or the antioxidant acetyl eugenol, may partially explain the mechanisms of L. multiflorum plant growth promotion after the application of fungal filtrates and/or extracts.

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“…The priming of rye seeds (cv. Boguslavka) with zeatin resulted in significant changes of endogenous CK pools in both shoots and roots of 7-day-old seedlings ( Vedenicheva et al., 2022 ). Also, rye plants grown from CK-primed seeds were more resistant to hyperthermia stress than untreated control ( Vedenicheva et al., 2022 ).…”

Section: Cytokinin Priming To Increase Crops Growth and Yieldmentioning

confidence: 99%

“…Boguslavka) with zeatin resulted in significant changes of endogenous CK pools in both shoots and roots of 7-day-old seedlings ( Vedenicheva et al., 2022 ). Also, rye plants grown from CK-primed seeds were more resistant to hyperthermia stress than untreated control ( Vedenicheva et al., 2022 ). Two cultivars of hexaploid spring wheat ( Triticum aestivum L.) seeds were pre-soaked in BAP and KIN solutions, and the primed and non-primed seeds of salt-intolerant MH- 97 , as well as salt-tolerant Inqlab-91, were compared.…”

Section: Cytokinin Priming To Increase Crops Growth and Yieldmentioning

confidence: 99%

“…Previous exposure to a mild abiotic stress including heat, cold, osmotic or water stress can also improve resistance of various environmental stresses ( Thomashow, 2010 ; Amooaghaie and Tabatabaie, 2017 ; Fan et al., 2018 ; Lemmens et al., 2019 ). Priming with plant hormones (hormopriming) is another popular and effective approach how to improve overall plant development ( Iqbal et al., 2006 ; Nawaz et al., 2013 ; Chipilski et al., 2021 ; Vedenicheva et al., 2022 ), with cytokinins (CKs) emerging as a potentially interesting new group of hormopriming regulators that have been repeatedly shown to influence several developmental processes, including photosynthesis and senescence ( Sobol et al., 2014 ; Vylíčilová et al., 2016 ; Hönig et al., 2018 ; Kučerová et al., 2020 ). In this review, we focus on possible CK effects in stress priming, with particular emphasis on the maintenance of photosynthesis, which is likely the backbone of the adaptive response mediated by this plant hormone.…”

Section: Introductionmentioning

confidence: 99%

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Plant hormone cytokinin at the crossroads of stress priming and control of photosynthesis

Hudeček

Nožková²,

Plíhalová³

et al. 2023

Front. Plant Sci.

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To cope with biotic and abiotic stress conditions, land plants have evolved several levels of protection, including delicate defense mechanisms to respond to changes in the environment. The benefits of inducible defense responses can be further augmented by defense priming, which allows plants to respond to a mild stimulus faster and more robustly than plants in the naïve (non-primed) state. Priming provides a low-cost protection of agriculturally important plants in a relatively safe and effective manner. Many different organic and inorganic compounds have been successfully tested to induce resistance in plants. Among the plethora of commonly used physicochemical techniques, priming by plant growth regulators (phytohormones and their derivatives) appears to be a viable approach with a wide range of applications. While several classes of plant hormones have been exploited in agriculture with promising results, much less attention has been paid to cytokinin, a major plant hormone involved in many biological processes including the regulation of photosynthesis. Cytokinins have been long known to be involved in the regulation of chlorophyll metabolism, among other functions, and are responsible for delaying the onset of senescence. A comprehensive overview of the possible mechanisms of the cytokinin-primed defense or stress-related responses, especially those related to photosynthesis, should provide better insight into some of the less understood aspects of this important group of plant growth regulators.

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Effect of seed priming with zeatin onSecale cerealeL. growth and cytokinins homeostasis under hyperthermia

Cited by 6 publications

References 52 publications

Effect of low-temperature stress on the growth of plants of Secale cereale (Poaceae) and endogenous cytokinin content in roots and shoots

Effect of low-temperature stress on the growth of plants of Secale cereale (Poaceae) and endogenous cytokinin content in roots and shoots

Plant-growth promoting activity of three fungal endophytes isolated from plants living in dehesas and their effect on Lolium multiflorum

Plant hormone cytokinin at the crossroads of stress priming and control of photosynthesis

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