Rooting of eucalypt cuttings as a problem-solving oriented model in plant biology

Vilasboa, Johnatan; Costa, Cibele Tesser da; Fett-Neto, Arthur Germano

doi:10.1016/j.pbiomolbio.2018.12.007

Cited by 42 publications

(21 citation statements)

References 113 publications

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“…We managed to overcome the difficulties involved in rooting mature trees and created a significant number of mother plants for further propagation and plantation. As expected the two Eucalyptus species responded differently to the rooting treatments applied (Vilasboa et al 2018). The rooting rate of cuttings from E. brachyphylla was particularly surprising (Fig.…”

Section: Discussionsupporting

confidence: 66%

“…Therefore, genetic variability is expected within hybrids tree populations. The influence of genetic background on AR formation is known in the Eucalyptus genus (Vilasboa et al 2018) as well as in other tree species (Legue et al 2014;Panetsos et al 1994).…”

Section: Discussionmentioning

confidence: 99%

“…A low rate of rooting of the cuttings from the mature trees was expected (Abu-Abied et al 2012; Vilasboa et al 2018). Therefore, as a first step, we sought to create a small collection of mother plants.…”

Section: Vegetative Propagation Of Elite Treesmentioning

confidence: 99%

“…This requires the induction of adventitious roots (ARs) from cuttings. However, because woody plants tend to lose their rooting ability during the change from juvenile to mature phase (Diaz-Sala 2014;Hackett 1985;Poethig 1990Poethig , 2010Riov et al 2013;Vilasboa et al 2018), it is often very difficult to clone trees with known blooming traits. The change from juvenile to mature phase is very prominent in some Eucalyptus trees, (Johnson 1926), thus, Eucalyptus trees serve as a good model system for research into the loss of rooting ability during adulthood (Abu-Abied et al 2012, 2014Levy et al 2014;Vilasboa et al 2018).…”

Section: Introductionmentioning

confidence: 99%

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Vegetative propagation of elite Eucalyptus clones as food source for honeybees (Apis mellifera); adventitious roots versus callus formation

Eliyahu

Duman

Sherf

et al. 2020

Israel J. Plant Sci.

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Summer and autumn in Israel are highly arid with not enough plants in bloom offering nectar and pollen to support the local apiary. This leads to decline in colony health and honey production. To increase food sources for honeybees, we initiated a project to clone elite Eucalyptus trees exhibiting constant and rich blooming from late summer to early winter. We induced adventitious roots from cuttings of two mature Eucalyptus trees of which nectar production and honeybees’ attraction was measured: Eucalyptus brachyphylla and Eucalyptus x trabutii. During the rooting process, a high frequency of cylindrical callus formation instead of roots was obtained. To shed light on the inner anatomy of the callus chunks, we compared their cell organization and cell-wall composition to those of roots. Whereas in the root, cells were organized in circumferential symmetry, no symmetry was found in the callus. Instead, a more chaotic accumulation of meristematic-like cells with sporadic clusters of tracheary elements laid in different directions were observed. The outer cell layer of the callus often included swollen cells with thin cell walls. Most callus cells stained more strongly for cellulose and lignin than cells in the root meristem. In addition, specific antibodies to methylesterified and de-methylesterified pectin showed differential staining of callus vs. root cells indicating cell wall differences. Strikingly, roots were seen to differentiate from the chaotic cell organization of the callus, albeit at low rates. Further investigation of the cellular and molecular mechanisms underlying callus formation, are required.

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Section: Discussionsupporting

confidence: 66%

Section: Discussionmentioning

confidence: 99%

Section: Vegetative Propagation Of Elite Treesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Vegetative propagation of elite Eucalyptus clones as food source for honeybees (Apis mellifera); adventitious roots versus callus formation

Eliyahu

Duman

Sherf

et al. 2020

Israel J. Plant Sci.

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“…Recent comprehensive published reviews summarize various aspects concerning adventitious root formation. These include hormones interactions (Druege et al 2016;Lakehal and Bellini 2019), decline during maturation (Pizarro and Diaz-Sala 2019), development in response to stress (Steffens and Rasmussen 2016), OMICs studies to address recalcitrance (Vilasboa et al 2018) and more. Here we review an additional aspect; the contribution of cell wall remodeling to lateral and adventitious root formation.…”

Section: Introductionmentioning

confidence: 99%

The contribution of cell wall remodeling and signaling to lateral organs formation

Duman

Eliyahu

Abu-Abied

et al. 2020

Israel J. Plant Sci.

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Lateral organs are formed in plants by post embryonic developmental programs. Leaves, and flowers differentiate from the shoot apical meristem and lateral roots from the primary root pericycle meristem. Adventitious roots are roots formed from non-root lateral meristematic tissues, mostly the cambium, in many cases in response to stress signals. The ability of plants to regenerate adventitious roots is fundamental for selection and breading programs which are based on vegetative propagation of elite clones. Thus, recalcitrant plants, losing their rooting capability, may form a genuine commercial barrier in agricultural and forestry improvement programs. Some cellular mechanisms underlying adventitious root formation have been revealed, but much is yet to be clarified. The plant primary cell wall is a dynamic organ that can change its form, and perceive and relay molecular signals inward and outward during certain stages of development in particular cells. Therefore, before the secondary cell wall is deposited and plants become the wood from which walls and furniture are built, and the fibers from which cloths are woven, primary cell walls actively participate in plant cell differentiation and developmental programs. While auxin is a major regulator, cell walls are important in regulating coherent formative cell division and synchronized polar elongation of cell lineages that are necessary for lateral organ induction and formation, and collaborative cell functioning. Nevertheless, little is known of how cell wall changes are molecularly sensed and translated to intracellular signals during differentiation of adventitious roots. Here we summarize recent data linking, directly or indirectly, cell wall events to auxin signaling and to lateral or adventitious root induction and formation.

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Maritime Pine Genomics in Focus

Sterck

María

Cañas

et al. 2022

Compendium of Plant Genomes

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Rooting of eucalypt cuttings as a problem-solving oriented model in plant biology

Cited by 42 publications

References 113 publications

Vegetative propagation of elite Eucalyptus clones as food source for honeybees (Apis mellifera); adventitious roots versus callus formation

Vegetative propagation of elite Eucalyptus clones as food source for honeybees (Apis mellifera); adventitious roots versus callus formation

The contribution of cell wall remodeling and signaling to lateral organs formation

Maritime Pine Genomics in Focus

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