Melatonin and other factors that promote rooting and sprouting of shoot cuttings in Punica granatum cv. Wonderful

Sarrou, Eirini; Therios, I.; Dimassi-Theriou, Kortessa

doi:10.3906/bot-1302-55

Cited by 56 publications

(42 citation statements)

References 40 publications

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“…Several studies in mung bean (Li et al ., ), flax (Takáč et al ., ), pomegranate (Sarrou et al ., ) and marigold (Liao et al ., ) have indicated that application of H 2 O 2 may promote AR formation. Li et al .…”

Section: Discussionmentioning

confidence: 99%

The major‐effect quantitative trait locus CsARN6.1 encodes an AAA ATPase domain‐containing protein that is associated with waterlogging stress tolerance by promoting adventitious root formation

et al. 2018

The Plant Journal

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In plants, the formation of hypocotyl-derived adventitious roots (ARs) is an important morphological acclimation to waterlogging stress; however, its genetic basis remains fragmentary. Here, through combined use of bulked segregant analysis-based whole-genome sequencing, SNP haplotyping and fine genetic mapping, we identified a candidate gene for a major-effect QTL, ARN6.1, that was responsible for waterlogging tolerance due to increased AR formation in the cucumber line Zaoer-N. Through multiple lines of evidence, we show that CsARN6.1 is the most possible candidate for ARN6.1 which encodes an AAA ATPase. The increased formation of ARs under waterlogging in Zaoer-N could be attributed to a non-synonymous SNP in the coiled-coil domain region of this gene. CsARN6.1 increases the number of ARs via its ATPase activity. Ectopic expression of CsARN6.1 in Arabidopsis resulted in better rooting ability and lateral root development in transgenic plants. Transgenic cucumber expressing the CsARN6.1 allele from Zaoer-N exhibited a significant increase in number of ARs compared with the wild type expressing the allele from Pepino under waterlogging conditions. Taken together, these data support that the AAA ATPase gene CsARN6.1 has an important role in increasing cucumber AR formation and waterlogging tolerance.

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Section: Discussionmentioning

confidence: 99%

The major‐effect quantitative trait locus CsARN6.1 encodes an AAA ATPase domain‐containing protein that is associated with waterlogging stress tolerance by promoting adventitious root formation

et al. 2018

The Plant Journal

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“…Currently, melatonin functions in plant physiology are being intensively explored. Some evidence implicates its role as a growth stimulator and plant development factor (Hernández-Ruiz et al 2004, 2005Arnao and Hernández-Ruiz 2007;Hernández-Ruiz and Arnao 2008a;Chen et al 2009;Sarrou et al 2014;Zhang et al 2014). It seems that this indoleamine plays a significant role in plant stress defense.…”

Section: Introductionmentioning

confidence: 97%

The levels of melatonin and its metabolites in conditioned corn (Zea mays L.) and cucumber (Cucumis sativus L.) seeds during storage

et al. 2015

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The efficiency of pre-sowing conditioning/ priming methods used to apply melatonin into seeds was verified: osmopriming in the case of dicot Cucumis sativus and hydropriming of monocot Zea mays seeds. Both priming techniques were selected experimentally as optimal for the studied plant species. Four different seed variants were compared: control non-treated ones, and seeds conditioned with water or with 50 or 500 lM melatonin water solutions. The HPLC-MS quantitative and qualitative analyses were used to determine the content of melatonin and of its potential metabolites in the seeds during 1 year following the conditioning. The control seeds and those conditioned with water contained small amount of endogenous melatonin in both species. However, the level of this indoleamine increased markedly in cucumber and corn seeds primed with exogenous melatonin and it was always correlated with the concentration of melatonin applied. It was noted that melatonin was metabolized during seed storage by its gradual oxidation, thus it protects dry seeds against oxidative stress, prevents potential injuries and significantly increases seeds quality. Interestingly, in the control and water-primed seeds, seasonal fluctuations of endogenous melatonin concentration were noted and significant increase in this indoleamine in the winter month was observed. This suggests that in seeds endogenous melatonin could play a crucial role in seasonal rhythms independently of environmental conditions.

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“…Among many abiotic stresses, melatonin is positively implicated in mitigating plant injury by modulating and promoting the endogenous defense mechanisms against cold , heat , drought , UV light , reactive oxygen species , and osmotic shock . Apart from these defensive roles in plants, melatonin is also known to participate in promoting root formation and seedling growth , as well as plant ripening and the senescence processes . Recently, it was revealed that melatonin acts as a signal molecule for triggering plant defense mechanisms in response to biotic stresses, such as pathogen attacks, by way of the salicylic acid pathway in Arabidopsis , suggesting the pleiotropic roles of melatonin during the entire life cycle of plant growth and development.…”

Section: Introductionmentioning

confidence: 99%

Low melatonin production by suppression of either serotonin N‐acetyltransferase or N‐acetylserotonin methyltransferase in rice causes seedling growth retardation with yield penalty, abiotic stress susceptibility, and enhanced coleoptile growth under anoxic conditions

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2016

Journal of Pineal Research

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Serotonin N-acetyltransferase (SNAT) and N-acetylserotonin methyltransferase (ASMT) are the last two key enzymes for melatonin biosynthesis in living organisms. In this study, we demonstrated that transgenic rice (Oryza sativa L.) plants, in which expression of either endogenous SNAT or ASMT was suppressed, had reduced melatonin synthesis, confirming that both SNAT and ASMT are functionally involved in melatonin synthesis. The melatonin-deficient SNAT rice had retarded seedling growth, which was partially restored by exogenous melatonin application, suggesting melatonin's role in seedling growth. In addition, the plants were more sensitive to various abiotic stresses, including salt and cold, compared with the wild type. Melatonin-deficient SNAT rice had increased coleoptile growth under anoxic conditions, indicating that melatonin also inversely regulates plant growth under anaerobic conditions with the concomitant high expression of alcohol dehydrogenase genes. Similarly, the melatonin-deficient ASMT rice exhibited accelerated senescence in detached flag leaves, as well as significantly reduced yield. These loss-of-function studies on the melatonin biosynthetic genes confirmed most previous pharmacological reports that melatonin not only promotes plant growth but also mitigates various abiotic stresses.

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Melatonin and other factors that promote rooting and sprouting of shoot cuttings in Punica granatum cv. Wonderful

Cited by 56 publications

References 40 publications

The major‐effect quantitative trait locus CsARN6.1 encodes an AAA ATPase domain‐containing protein that is associated with waterlogging stress tolerance by promoting adventitious root formation

The major‐effect quantitative trait locus CsARN6.1 encodes an AAA ATPase domain‐containing protein that is associated with waterlogging stress tolerance by promoting adventitious root formation

The levels of melatonin and its metabolites in conditioned corn (Zea mays L.) and cucumber (Cucumis sativus L.) seeds during storage

Low melatonin production by suppression of either serotonin N‐acetyltransferase or N‐acetylserotonin methyltransferase in rice causes seedling growth retardation with yield penalty, abiotic stress susceptibility, and enhanced coleoptile growth under anoxic conditions

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