Shoot proliferation and organogenesis on Arbutus unedo: physiological analysis under water stress

Martins, João; Correia, Sandra; Correia, Bárbara; Pinto, Glória; Canhoto, Jorge

doi:10.32615/bp.2019.032

Cited by 11 publications

(10 citation statements)

References 31 publications

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Section: Discussionsupporting

confidence: 91%

“…Overall, the measured values of physiological parameters are in accordance with those obtained on a previous study [9]. However, net CO 2 assimilation rates measured were higher than those obtained on previous reports [9,49]. This difference can be related to the older age of the plants evaluated on this study, which hypothetically might have a higher photosynthetic ability.…”

Section: Discussionsupporting

confidence: 90%

“…Thus, early selection decisions are currently only based on productivity/fruit quality traits. Considering the increasing demand of high-quality plant stocks of A. unedo, in vitro propagation protocols were developed to clone selected genotypes [6][7][8], and studies to evaluate how these in vitro propagation systems change drought tolerance of regenerated plants have been carried out [9]. Some studies have been conducted on strawberry tree pollen, and a morphological description has been provided [10,11].…”

Section: Introductionmentioning

confidence: 99%

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Hybridization Assays in Strawberry Tree toward the Identification of Plants Displaying Increased Drought Tolerance

Martins

Monteiro

Pinto

et al. 2021

Forests

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Arbutus unedo L. is a small Ericaceae tree with a circum-Mediterranean distribution. It has a huge ecological impact on southern Europe forests and a great economic importance as a source of phytochemicals with bioactive properties and for fruit production. On the foreseen climate change context, breeding toward drought tolerance is necessary in order to ameliorate plant performance. Therefore, the aim of this work was to study the reproduction mechanisms of the strawberry tree, obtain new genetic combinations by hybridization, and select genotypes more tolerant to drought stress. A morphological analysis of flowers and pollen was carried out, and controlled pollinations were performed both in vitro and ex vitro. The very first approach on strawberry tree breeding by means of hybridization is also presented. Several physiological parameters were evaluated on 26 genotypes submitted to a water-deficit regime. Plant behavior under drought greatly varied among genotypes, which showed high phenotype plasticity. Three genotypes that were able to cope with water restriction without compromising net CO2 assimilation were identified as highly tolerant to drought stress. The results obtained elucidate the reproduction mechanisms of the strawberry tree and open the way for a long-term breeding program based on the selection of drought-tolerant plants.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Hybridization Assays in Strawberry Tree toward the Identification of Plants Displaying Increased Drought Tolerance

Martins

Monteiro

Pinto

et al. 2021

Forests

View full text Add to dashboard Cite

show abstract

Section: Discussionsupporting

confidence: 91%

“…Thus, early selection decisions are currently only based on productivity/fruit quality traits. Considering the increasing demand of high quality plant stocks of A. unedo, in vitro propagation protocols were developed to cloning selected genotypes [6][7][8] and studies to evaluate how these in vitro propagation systems change drought tolerance of regenerated plants have been carried out [9].…”

Section: Introductionmentioning

confidence: 99%

Hybridization Assays in Strawberry Tree Towards the Identification of Plants Displaying Increased Drought Tolerance

Martins¹,

Monteiro²,

Pinto³

et al. 2021

Preprint

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Arbutus unedo L. is a small Ericaceae tree with a circum-Mediterranean distribution. It has a huge ecological impact on southern Europe forests and a great economic importance, as a source of phytochemicals with bioactive properties and for fruit production. On the foreseen climate change context, breeding towards drought tolerance is necessary in order to ameliorate plant performance. The aim of this work was therefore to study the reproduction mechanisms of strawberry tree, obtain new genetic combinations by hybridization and select genotypes more tolerant to drought stress. A morphological analysis of flowers and pollen was carried out, and controlled pollinations performed both in vitro and ex vitro. The very first approach on strawberry tree breeding by means of hybridization is also presented. Several physiological parameters were evaluated on 26 genotypes submitted to a water deficit regime. Plant behavior under drought greatly varied among genotypes, which showed a high phenotype plasticity. Three genotypes that were able to cope with water restriction without compromising net CO2 assimilation were identified as highly tolerant to drought stress. The results obtained elucidate the reproduction mechanisms of strawberry tree and open the way for a long-term breeding program based on the selection of drought tolerant plants.

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Study of physiological and biochemical events leading to vitrification of Arbutus unedo L. cultured in vitro

Marques

Martins

Carvalho

et al. 2020

Trees

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Shoot proliferation and organogenesis on Arbutus unedo: physiological analysis under water stress

Abstract: This is an open access article distributed under the terms of the Creative Commons BY-NC-ND Licence

Cited by 11 publications

References 31 publications

Hybridization Assays in Strawberry Tree toward the Identification of Plants Displaying Increased Drought Tolerance

Hybridization Assays in Strawberry Tree toward the Identification of Plants Displaying Increased Drought Tolerance

Hybridization Assays in Strawberry Tree Towards the Identification of Plants Displaying Increased Drought Tolerance

Study of physiological and biochemical events leading to vitrification of Arbutus unedo L. cultured in vitro

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