2003
DOI: 10.1590/s0100-84042003000300007
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Abstract: -(Leaf anatomy of Araucaria angustifolia (Bertol.) Kuntze (Araucariaceae)). Immature and mature leaves of juvenile and adult plants of Araucaria angustifolia (Araucariaceae) were observed with the objective of updating the morphoanatomical data of the leaves of this species, which were restricted to basic descriptions in previous studies. The observations, made in optical allowed to establish anatomical differences among mature leaves of juvenile and adult plants in relation to the number of palisade parenchim… Show more

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Cited by 12 publications
(12 citation statements)
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“…However, the cuticle in A. angustifolia appears to be very thin, in contrast to the one-to twolayer, thick-walled hypodermis that lies underneath. This leaf tissue seems to play an important role in providing not only mechanical protection but also an important resistance to water loss (Mastroberti and Mariath 2003). Thus, it would be interesting to investigate possible changes in biophysical properties of both leaf cuticle and hypodermis in response to water limitation to better interpret leaf water absorption capacity under contrasting soil water availabilities.…”
Section: Discussionmentioning
confidence: 99%
“…However, the cuticle in A. angustifolia appears to be very thin, in contrast to the one-to twolayer, thick-walled hypodermis that lies underneath. This leaf tissue seems to play an important role in providing not only mechanical protection but also an important resistance to water loss (Mastroberti and Mariath 2003). Thus, it would be interesting to investigate possible changes in biophysical properties of both leaf cuticle and hypodermis in response to water limitation to better interpret leaf water absorption capacity under contrasting soil water availabilities.…”
Section: Discussionmentioning
confidence: 99%
“…These results indicate that in palisade mesophyll there is a greater accumulation of organic molecules containing S. Likewise, Mastroberti and Mariath (2003) reported an accumulation of phenolic compounds and a large number of chloroplasts in A. angustifolia; both generally contain S in their composition. Conn and Gilliham (2010) also reported higher S concentrations in the mesophyll compared to the epidermis of monocot and dicot leaves.…”
Section: Elemental Distribution In Epidemis and Mesophyllmentioning
confidence: 54%
“…Furthermore, some species of Araucaria have a dorsiventral mesophyll, whereas others, such as the two South American species, A. angustifolia and A. araucana, which both belong to section Araucaria, and A. bidwillii of section Bunya, exhibit an isobilateral mesophyll ( Fig. 6i-k) similar to that of the Patagonian leaves (Seward andFord 1906, Mastroberti andMariath 2003). In this regard, the well-developed and densely packed adaxial and abaxial palisade cells of the Patagonian specimens are most similar to those exhibited by A. araucana (Figs.…”
Section: Comparison With Extant Broad Multi-veined Conifer Leavesmentioning
confidence: 97%
“…however, the former are distinguished by having a dorsiventral mesophyll with singly large sclereids and enlarged mucilage cells in the spongy tissue (Chambers et al 1998, Burrows andBullock 1999). these unusual mucilage cells are confined to Wollemia and Araucaria (Bamber et al 1978, Burrows and Bullock 1999, Mastroberti and Mariath 2003, 2008. the Patagonian leaves appear to lack these mucilage cells, but this could be due to preservational factors.…”
Section: Comparison With Extant Broad Multi-veined Conifer Leavesmentioning
confidence: 99%
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