A Model for Resin Flow

Cabrita, Paulo

doi:10.1007/978-3-030-11253-0_5-1

Cited by 4 publications

(8 citation statements)

References 95 publications

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“…Constitutive resin ducts are commonly observed in the phloem and/or xylem of coniferous species and function in structural defense 10 , 13 – 16 . Such constitutive resin ducts, similar to those of conifers, have also been observed in many families of woody angiosperms, such as Anacardiaceae, Asteraceae, Brassicaceae, Fabaceae, Hypericaceae, Simaroubaceae 10 and Burseraceae, including Boswellia species 4 , 12 .…”

Section: Introductionmentioning

confidence: 57%

“…The present results suggest that the increased resin ducts in this study are traumatic resin ducts, not normal or constitutive resin ducts, as observed in the outer bark tissue. In many angiosperms, the vertical, tangential, and radial ducts in the phloem form a continuous three-dimensional system connecting the leaves, stems, and roots throughout the plant 12 .…”

Section: Discussionmentioning

confidence: 99%

“…Lysigenous ducts result from the dissolution of cells 10 . In many angiosperms, vertical, tangential, and radial ducts form a continuous three-dimensional system connecting the leaves, stems, and roots throughout the plant 12 . Normal vertical and horizontal schizogenous resin ducts in angiosperms, e.g., Burseraceae, including Boswellia species, occur in the phloem 12 .…”

Section: Introductionmentioning

confidence: 99%

“…The development of traumatic resin ducts as an inducible defense response occurs in the phloem and/or xylem tissues of many coniferous species 12 , 17 , 18 and mostly in the phloem of woody angiosperm species 4 , 12 after challenge by external stimuli, including mechanical wounding, insect attacks and infection by microorganisms. In most plants, the diverse defense mechanisms occurring in wounded tissue in response to various external stimuli are regulated through a complex network of signaling pathways mediated by plant hormones.…”

Section: Introductionmentioning

confidence: 99%

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Roles of ethylene, jasmonic acid, and salicylic acid and their interactions in frankincense resin production in Boswellia sacra Flueck. trees

Yamamoto

Iwanaga

Al-Busaidi

et al. 2020

Sci Rep

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The roles of ethylene, jasmonic acid, and salicylic acid and their interactions in frankincense resin production in Boswellia sacra trees growing in the drylands of Oman were studied. On March 18 (Experiment 1) and September 17 (Experiment 2), 2018, 32-year-old B. sacra trees with multiple trunks were selected at the Agricultural Experiment Station, Sultan Qaboos University, Oman. Various lanolin pastes containing Ethrel, an ethylene-releasing compound; methyl jasmonate; sodium salicylate; and combinations of these compounds were applied to debarked wounds 15 mm in diameter on the trunks. After a certain period, the frankincense resin secreted from each wound was harvested and weighed. The anatomical characteristics of the resin ducts were also studied in the bark tissue near the upper end of each wound. The combination of Ethrel and methyl jasmonate greatly enhanced frankincense resin production within 7 days in both seasons. The application of methyl jasmonate alone, sodium salicylate alone or a combination of both did not affect resin production. These findings suggest a high possibility of artificial enhancement of frankincense resin production by the combined application of Ethrel and methyl jasmonate to B. sacra trees.

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Section: Introductionmentioning

confidence: 57%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Roles of ethylene, jasmonic acid, and salicylic acid and their interactions in frankincense resin production in Boswellia sacra Flueck. trees

Yamamoto

Iwanaga

Al-Busaidi

et al. 2020

Sci Rep

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“…The exudate from T. guianensis appears to be of a mixture of gums and resin, as was recently proposed for the Anacardiaceae family [ 28 ]. The Hagen-Poiseuille Equation was inadequate for understanding the flow of exudates in bark wounds, as gum-resins do not behave like Newtonian liquids [ 29 ]. Therefore, Cabrita [ 29 ] constructed a new equation that takes into account the pressure in the duct lumen, the approximate cylindrical geometry of resin duct systems in plants, and the granulocrine loading of resin.…”

Section: Discussionmentioning

confidence: 99%

Tree Species and Morphology of Holes Caused by Black-Tufted Marmosets to Obtain Exudates: Some Implications for the Exudativory

Lamoglia

Boere

Picoli

et al. 2022

Animals

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Knowledge of the pattern of exploitation of trees can help us understand the relationship between marmosets and plants, especially in declining forests, such as those in the Brazilian Cerrado. Black-tufted marmosets (Callithrix penicillata) regularly exploit exudates by gouging the bark of trees with their specialized teeth. Determining preferred tree species to exploit exudates is important for forest management aimed at maintaining an essential food source for urban marmosets. We characterized the tree species, dendrometry, and the characteristics of the holes made by marmosets to obtain exudates. Based on these data, we proposed a gouging effort index (Chiseling Suitability Index for Marmosets, ChiSI). We identified 16 species belonging to 10 families of trees with gouging marks made by marmosets. Eleven new tree species used by black-tufted marmosets for exudates were identified in urban forests in the Cerrado. Exudate exploration was predominantly of medium intensity, with round holes concentrated in the canopy. The species Tapirira guianensis and Croton urucana were preferred. The ChiSI was characterized by a narrow range for both T. guianensis and C. urucana. Despite the flexibility of obtaining exudates, the black-tufted marmosets concentrate their exploitation to only a few tree species. The T. guianensis and C. urucana tree species should be considered the most important species for management plans and the preservation of black-tufted marmosets that live in urban forests in the Cerrado.

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Structural and histochemical attributes of secretory ducts and cavities in leaves of four species of Calophyllaceae J. Agardh in Amazonian savannas

et al. 2021

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This study represents an important contribution to the structural, histochemical and biological understanding of ducts and cavities in leaves of four species of Calophyllaceae that occur in Amazonian savannas.• Samples of adult leaves were processed using light, scanning and transmission electron microscopy, as per usual methods for plant anatomy.• In paradermal sections, the lumina of ducts are elongated while those of cavities are short. Ducts occur exclusively in the central rib and are abundant in Kielmeyera rubriflora Cambess and Kielmeyera coriacea Mart. and Zucc and larger than in Calophyllum brasiliense Cambess and Caraipa densifolia Mart. In mesophyll, the type of secretory structure and distribution pattern of the ducts and cavities are distinct. In most species, the secreted metabolites are similar and consist of phenolic compounds, lipids, essential oils with oleoresins, mucilage, neutral polysaccharides, proteins and alkaloids, except in K. coriacea, which does not contain oleoresin. The secretion is probably synthesized by mitochondria, rough endoplasmic reticulum, ribosomes and dictyosomes and is externalized toward the lumen by granulocrine and eccrine processes.• In addition to being of diagnostic value for species identification, the attributes of the lumen shape, type of secretory structure, distribution pattern, identified metabolites and secretion mechanism are important for understanding the biological roles of ducts and cavities. The identified metabolites reveal a capacity for adaptation, resistance and protection from the action of herbivores and pathogens, and in water retention.

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A Model for Resin Flow

Cited by 4 publications

References 95 publications

Roles of ethylene, jasmonic acid, and salicylic acid and their interactions in frankincense resin production in Boswellia sacra Flueck. trees

Roles of ethylene, jasmonic acid, and salicylic acid and their interactions in frankincense resin production in Boswellia sacra Flueck. trees

Tree Species and Morphology of Holes Caused by Black-Tufted Marmosets to Obtain Exudates: Some Implications for the Exudativory

Structural and histochemical attributes of secretory ducts and cavities in leaves of four species of Calophyllaceae J. Agardh in Amazonian savannas

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