Anatomy of the Dicotyledons.
About: This article is published in American Midland Naturalist.The article was published on 1950-11-01. It has received 2511 citations till now.
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TL;DR: Differences in leaf micromorphoanatomy can be used to distinguish between grapevine cultivars and further studies are needed to confirm whether there is any association between some of these leaf traits – e.g. stomata type and mesophyll structure – and the physiological behaviour observed under field conditions.
Abstract: Aiming to characterize and discriminate between four red grapevine cultivars – ‘Aragonez’ (AR), ‘Cabernet Sauvignon’ (CS), ‘Syrah’ (SY) and
‘Touriga Nacional’ (TN) – grown under Mediterranean field conditions, we studied their leaf micromorphoanatomic characteristics under light
(LM) and scanning electron microscopy (SEM). The studied characteristics included those of the epidermis, stomata and hair distribution, and
the mesophyll structure. The individual primary leaf area revealed significant differences between cultivars, with the highest value presented
by AR and the lowest by CS, while SY and TN gave intermediate values. CS presented a significantly higher leaf specific dry weight value
than the other three cultivars, which returned similar values. Under SEM magnification three types of stomata were identified in all the studied
genotypes: sunken, at the same level, and raised above the other epidermal cells. Each cultivar displayed different percentages of these types of
stomata: the highest raised-above values were observed in AR; TN had the highest same-level values and the lowest sunken ones; CS revealed
the highest values for sunken stomata; while SY returned average values for all the types of stomata. Stomatal density was higher in AR and
SY and lower in CS and TN. The hairs on the lower surface presented a similar woolly aspect in all the studied cultivars, but the mesophyll
structure was quite different: CS presented the highest and AR the lowest values for total thickness of the lamina, thickness of palisade and
spongy parenchyma, and length and thickness of upper and lower epidermal cells; the values for these leaf features in TN and SY fell between
those for CS and AR. The data suggest that differences in leaf micromorphoanatomy can be used to distinguish between grapevine cultivars.
Further studies are needed to confirm whether there is any association between some of these leaf traits – e.g. stomata type and mesophyll
structure – and the physiological behaviour observed under field conditions.
16 citations
Cites background from "Anatomy of the Dicotyledons."
...Descriptive botanical works on the ampelography (Galet, 2000), morphology and anatomy (Pratt, 1974; Esau, 1977; Metcalfe and Chalk, 1979) of grapevines were published in the early twentieth century....
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TL;DR: The phylogenctic trees based on individual genes and the combined data suggested that Diventodon is sister to Tapiscia (Tapisciaceae) and that Dipentodon could be placed in euroside 11 of the APG system.
Abstract: Phylogenctic position of the monotypic genus Dipentodon has long been controversial. We investigated its,:position with 125 accessions representing 50 genera and 40 families of eudicots in the APG system. Four data sets-including the chloroplast gene rbcL, the nuclear 18S ribosomal DNA, and the mitochondrial gene matR, as well as,,,the combined matrix-were used in the study with the maximum parsimony (MP) and Bayesian inference (131) analyses. The phylogenctic trees based on individual genes and the combined data suggested that Diventodon is sister to Tapiscia (Tapisciaceae) and that Dipentodon could be placed in euroside 11 of the APG system. The clade of Dipentodon and Tapiscia is closest to Malvales and Sapindales. Such finding does not support the previously suggested close relationship between Dipentodon and various other groups, including Celastraceae, Samydaceae, Flacourtiaceae, Hamamelidaceae, and Santalales.
16 citations
01 Jan 1965
16 citations
01 Jan 2005
TL;DR: It was studied the leave anatomy and architecture of Montrichardia linifera (Arruda) Schott, species found in várzea of the Amazonian region, and primitive characteristics as the presence of simple tracheid in substituition to vase elements, paracytic stomata and idioblastics in raphides were observed.
Abstract: It was studied the leave anatomy and architecture of Montrichardia linifera (Arruda) Schott, species found in várzea of the Amazonian region. For this study usual techniques were used in plant anatomy. The principal characteristics of the specie were: amphiestomatic leaf, with paracytic stomata, isobilateral mesophyll, presence aerenchyma druse, raphide, mucilage and phenolic compound idioblastic in all tissues of the leaf. The architecture is reticulate, anastomosing, camptodromous, brochidodromous type. The vein-terminations are simple, involved by sheath cells. Primitive characteristics as the presence of simple tracheid in substituition to vase elements, paracytic stomata and idioblastics in raphides were observed.
16 citations
Journal Article•
TL;DR: Although the degree of significance varies between species, correlation and multiple regression analysis indicated a significant correlation between wood anatomical characters and non-anatomical factors.
Abstract: The intraspecific relationships of selected wood anatomical characters such as altitude, stem diameter, stem age and average annual ring width were investigated in five different Turkish Rhododendron L. species. Rhododendron luteumSweet. grows at an altitude of 110 to 2230 m, R. ungerniiTrautv. 900 to 2020 m, R. smirnoviiTrautv. 1600 to 2230 m, R. caucasicumPallas 1900 to 3100 m, and R. ponticumL. from sea level to 2230 m in the Eastern Black Sea Region. Although the degree of significance varies between species, correlation and multiple regression analysis indicated a significant correlation between wood anatomical characters and non-anatomical factors.
16 citations