La membrana de la punteadura en dos especies de Cacteae, Cactaceae

Grego-Valencia, Dalia; Terrazas, Teresa; Lara‐Martínez, Reyna; Jiménez‐García, Luis Felipe

doi:10.17129/botsci.145

Cited by 5 publications

(4 citation statements)

References 23 publications

(24 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…WBTs are important to avoid V embolisms and cavitations . Most species of the Cactaceae at some stage of their development have WBTs, [ ][ ][ ] particularly those in the subfamily Cactoideae.…”

Section: Introductionmentioning

confidence: 99%

Chemical Composition of Cacti Wood and Comparison with the Wood of Other Taxonomic Groups

Maceda

Soto-Hernández

Peña-Valdivia

et al. 2018

Chemistry & Biodiversity

Self Cite

View full text Add to dashboard Cite

The aims of this study were to determine the wood chemical composition of 25 species of Cactaceae and to relate the composition to their anatomical diversity. The hypothesis was that wood chemical components differ in relationship to their wood features. The results showed significant differences in wood chemical compounds across species and genera (P < 0.05). Pereskia had the highest percentage of lignin, whereas species of Coryphantha had the lowest; extractive compounds in water were highest for Echinocereus, Mammillaria, and Opuntia. Principal component analysis showed that lignin proportion separated the fibrous, dimorphic, and non-fibrous groups; additionally, the differences within each type of wood occurred because of the lignification of the vascular tissue and the type of wall thickening. Compared with other groups of species, the Cactaceae species with fibrous and dimorphic wood had a higher lignin percentage than did gymnosperms and Acer species. Lignin may confer special rigidity to tracheary elements to withstand desiccation without damage during adverse climatic conditions.

show abstract

Section: Introductionmentioning

confidence: 99%

Chemical Composition of Cacti Wood and Comparison with the Wood of Other Taxonomic Groups

Maceda

Soto-Hernández

Peña-Valdivia

et al. 2018

Chemistry & Biodiversity

Self Cite

View full text Add to dashboard Cite

show abstract

“…In species with dimorphic wood, the vertical compression capacity is reduced due to the lignification of secondary walls, not only in fibres but also in vessel elements. Vessel elements switch from helical thickenings to pseudoscalariform and alternate intervascular pits (Grego-Valencia & al. 2015;Terrazas & al.…”

Section: Other Anatomical Traitsmentioning

confidence: 99%

Growth form and wood evolution in the tribeCacteae(Cactaceae)

et al. 2017

Self Cite

View full text Add to dashboard Cite

“…It has been hypothesized that the evolution of succulent growth form was greatly influenced by internal anatomical novelties in the stem, particularly those of the wood (Altesor et al, 1994 ; Carlquist, 2001 ; Mauseth, 2006 ). Such features involve an increased capacity of wood for water retention (Mauseth, 2006 ), very specialized tracheary elements with a limited secondary cell wall extension (Figure 1 ; Carlquist, 2001 ; Terrazas and Mauseth, 2002 ; Grego-Valencia et al, 2015 ; Reyes-Rivera et al, 2017 ) and a decreased lignification rate, which translates into a low wood accumulation (Altesor et al, 1994 ; Reyes-Rivera et al, 2017 ). Some of these characteristics are more or less conspicuous depending on the phylogeny: in Opuntioideae and Cactoideae, two of the most recently derived subfamilies with a predominance of succulent forms, diverse wood configurations have been reported (cambial variants sensu ; Carlquist, 2001 ).…”

Section: Introductionmentioning

confidence: 99%

Structural Characterization of Lignin in Four Cacti Wood: Implications of Lignification in the Growth Form and Succulence

et al. 2018

Self Cite

View full text Add to dashboard Cite

Wood lignin composition strongly depends on anatomical features and it has been used as a marker for characterizing major plant groups. Wood heterogeneity in Cactaceae is involved in evolutionary and adaptive processes within this group; moreover, it is highly correlated to the species growth form. Here we studied the lignin structure from different types of woods in four Cactaceae species with different stem morphologies (Pereskia lychnidiflora, tree/fibrous wood; Opuntia streptacantha and Pilosocereus chrysacanthus, tree/succulent fibrous wood; Ferocactus hamatacanthus, cylindrical stem/dimorphic wood) in order to determine their relationship with the wood anatomy in an evolutionary-adaptive context. Dioxane lignin was isolated and analyzed by pyrolysis coupled with gas chromatography and mass spectrometry (Py-GC/MS), two-dimensional nuclear magnetic resonance spectroscopy (2D-NMR) and attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR). The main linkages are the β-O−4′ ether (67–85%), the β-β′ resinol (10–26%) and the β-5′ and α-O−4′ linkages of the phenylcoumaran structures (≤7%). Spirodienone structures have a considerable abundance (5%) in the dimorphic wood of F. hamatacanthus. In addition, low contents (≤3%) of α,β-diaryl ether, α-oxidized β-O−4′ ether and dibenzodioxocin structures were found. The sinapyl- and coniferyl acetates are not part of the wood lignin in any of the studied species. The low (≤5%) γ-acetylation in the F. hamatacanthus and P. chrysacanthus wood lignin is here interpreted as an evidence of a high specialization of the wood elements in the conduction/storage of water. The lignin of the studied Cactaceae is composed predominantly of guaiacyl and syringyl units (S/G: 0.9–16.4). High abundance of syringyl units (62–94%) in three of the four species is considered as a defense mechanism against oxidative agents, it is a very conspicuous trait in the most succulent species with dimorphic wood. Furthermore, it is also associated with ferulates and the herein called γ-acetylated guaiacyl-syringaresinol complexes acting as nucleation sites for lignification and as cross-links between lignin and carbohydrates at the wide-band tracheid-fiber junctions.

show abstract

La membrana de la punteadura en dos especies de Cacteae, Cactaceae

Cited by 5 publications

References 23 publications

Chemical Composition of Cacti Wood and Comparison with the Wood of Other Taxonomic Groups

Chemical Composition of Cacti Wood and Comparison with the Wood of Other Taxonomic Groups

Growth form and wood evolution in the tribeCacteae(Cactaceae)

Structural Characterization of Lignin in Four Cacti Wood: Implications of Lignification in the Growth Form and Succulence

Contact Info

Product

Resources

About