scholarly journals Evolutionary Signal of Leaflet Anatomy in the Zamiaceae

2020 ◽  
Vol 181 (7) ◽  
pp. 697-715
Author(s):  
Mario Coiro ◽  
Nicola Jelmini ◽  
Hanna Neuenschwander ◽  
Michael A. Calonje ◽  
Andrew P. Vovides ◽  
...  
Keyword(s):  
Leaflet Anatomy

Provenance variation in morphology and leaflet anatomy of

Trees ◽  
1998 ◽  
Vol 13 (2) ◽  
pp. 96
Author(s):  
Z. Teklehaimanot ◽  
J. Lanek ◽  
H. F. Tomlinson
Keyword(s):  
Provenance Variation ◽  
Leaflet Anatomy

Morphogenesis of the compound leaf in three genotypes of the pea, Pisum sativum

1986 ◽  
Vol 64 (6) ◽  
pp. 1268-1276 ◽  
Author(s):  
K. S. Gould ◽  
Elizabeth G. Cutter ◽  
J. P. W. Young
Keyword(s):  
Pisum Sativum ◽  
Leaf Development ◽  
Culture System ◽  
Algebraic Model ◽  
Leaf Primordium ◽  
Axillary Shoots ◽  
Compound Leaf ◽  
Pisum Sativum L ◽  
Leaflet Anatomy

Leaf anatomy, ontogeny, and morphology were described and compared in a pea line (Pisum sativum L.) with conventional leaves and in isogenic lines carrying the mutations af (afila) or tl (tendril-less or acacia). The anatomy of stem, petiole, and rachis is not modified by these mutations. The tendrils, which in af replace leaflets, have normal tendril anatomy, and the terminal leaflets of the tl form have normal leaflet anatomy. The shoot apical dome has the same size and shape in the three genotypes, as does the leaf primordium up to the stage of initiation of the first laterals. The mature morphology of leaves varies with node of insertion. Some leaves, especially at nodes 3 and 4, have structures that are not typical of their genotype. An in vitro culture system is described for axillary shoots. Such shoots recapitulate most of the foliar features of seedling plants, but leaf morphology is on average more complex, and aberrant structures are more frequent. All these observations are discussed in relation to Young's algebraic model for compound leaf development.

Leaflet anatomy of the Dipterygeae clade (Faboideae: Fabaceae): evolutionary implications and systematics

2018 ◽  
Vol 187 (1) ◽  
pp. 99-117 ◽  
Author(s):  
Nayla Fernanda Silva ◽  
Rosani Do Carmo de Oliveira Arruda ◽  
Flavio Macedo Alves ◽  
Ângela Lúcia Bagnatori Sartori
Keyword(s):  
Leaflet Anatomy

scholarly journals Effect of lead treatment on the stipe and leaflet anatomy of Pteris vittata and Pityrogramma calomelanos (Pteridaceae: fern)

2020 ◽  
Vol 22 (2) ◽  
pp. 103-110
Author(s):  
R.A. Bamigboye ◽  
A.A. Yusuf ◽  
F.A. Oloyede
Keyword(s):  
Mesophyll Cell ◽  
Pteris Vittata ◽  
Cell Area ◽  
Tolerance Level ◽  
Randomized Design ◽  
Key Words Anatomy ◽  
Leaflet Anatomy ◽  
Cuticle Thickness ◽  
Pityrogramma Calomelanos ◽  
Screen House

The effect of various concentrations of Lead on stipe and leaflet anatomy of Pteris vittata and Pityrogramma calomelanos were investigated. Fernlets were transplanted into 5 kg pots of soil pre-treated with five different concentrations of Lead, adequately watered and arranged in a complete randomized design in the screen house. Pots with no Lead treatment served as control. At twelve weeks after planting, plants were carefully removed, washed and taken to the laboratory. Anatomical sections of leaflets and stipe of each of the treatments were carried out with a sledge microtome (10-15 μm). Microscopic observations of structures were made after staining the sections. In Pteris vittata, the thickness of the cuticle of the stipe increased with increasing Lead concentrations but the reverse of this was observed in Pityrogamma calomelanos. There was also significant reduction of epidermal and mesophyll cell area of both species with increasing Lead concentrations. It can be concluded from this study that P. vittata has a higher tolerance level to Lead than Pityrogramma calomelanos. Key words: Anatomy, Cuticle thickness, Ferns, Lead, Pteridaceae.

scholarly journals Aspects of leaf anatomy of kudzu (Pueraria lobata, Leguminosae-Faboideae) related to water and energy balance

1999 ◽  
Vol 34 (8) ◽  
pp. 1361-1365 ◽  
Author(s):  
Adaucto Bellarmino de Pereira-Netto ◽  
Antonio Carlos Gabriele ◽  
Hilton Silveira Pinto
Keyword(s):  
Cover Crop ◽  
Pueraria Lobata ◽  
Spongy Parenchyma ◽  
Lower Epidermis ◽  
Physiological Plasticity ◽  
Paraveinal Mesophyll ◽  
Palisade And Spongy Parenchyma ◽  
Leaflet Anatomy ◽  
Cuticle Thickness ◽  
Warm Temperate

Kudzu is a cover crop that has escaped cultivation in some subtropical and warm temperate regions. Kudzu has previously demonstrated broad intraspecific physiological plasticity while colonizing new environments. The objective of this paper was to investigate characteristics of kudzu leaflet anatomy that might contribute to its successful growth in climatically distinct environments, and to escape cultivation as well. Fresh and fixed leaflet strips of field-grown plants were analyzed. The lower epidermis of kudzu showed a higher frequency of stomata (147 ± 19 stomata mm-2) than the upper epidermis (26 ± 17 stomata mm-2). The average number of trichomes per square milimeter was 8 for both the upper and the lower epidermis. The average trichome length was 410 ± 200 mum for the upper epidermis and 460 ± 190 mum for the lower epidermis. Cuticle thickness was not considerably different between lower and upper epidermis. The leaflet blade consisted basically of two layers (upper and lower) of unicellular epidermis, two layers of palisade parenchyma and one layer of spongy parenchyma. One layer of paraveinal mesophyll was found between palisade and spongy parenchyma. In conclusion, leaflets of kudzu present anatomical characteristics that might contribute to the broad physiological plasticity shown by kudzu.

Anatomy and morphology suggest a hybrid origin of Zamia katzeriana (Zamiaceae)

Phytotaxa ◽  
2016 ◽  
Vol 270 (3) ◽  
pp. 161 ◽  
Author(s):  
MIGUEL A. PÉREZ-FARRERA ◽  
ANDREW P. VOVIDES ◽  
CHRISTIAN RUIZ-CASTILLEJOS ◽  
SONIA GALICIA ◽  
ANGÉLICA CIBRIÁN-JARAMILLO ◽  
...  
Keyword(s):  
Principal Component ◽  
Distinct Species ◽  
Hybrid Origin ◽  
Stomatal Index ◽  
Multivariate Statistical ◽  
Southern Mexico ◽  
Histological Techniques ◽  
Significant Difference ◽  
Discriminant Analyses ◽  
Leaflet Anatomy

The validity of Zamia splendens has been debated, mainly as a result of its synonymy under Z. katzeriana. Field explorations have uncovered previously unknown populations, and some do not appear to match the circumscription of Z. katzeriana. Some populations are morphologically more similar to, and often sympatric with, Z. loddigesii. This study aims at clarifying the morphological and anatomical distinction between the three taxa. To study the morphological variation, a total of 88 individuals from four populations were sampled, these spanning the geographical range of the three cycads in southern Mexico. Univariate, principal component and discriminant analyses of 12 vegetative morphological variables were carried out. To study variation in leaflet anatomy, three individuals per population were analysed for nine anatomical variables and their stomatal index. Standard plant histological techniques and bright field light microscopy were used for observations and measurements of leaflet anatomical variables. Both morphological and anatomical variables were analysed by multivariate statistical methods. Principal component and discriminant analyses on both morphological and anatomical variables and the stomatal index have shown a significant difference between the populations (P = <0.0002) with scatter diagram dispersion indicating three distinctive groups, with Z. katzeriana values consistently intermediate between those of Z. splendens and Z. loddigesii. Some individuals of Z. katzeriana have a leaflet morphology and anatomy similar to Z. loddigesii, yet others resemble Z. splendens. The three taxa comprise distinct species and we propose the acceptance of Z. splendens as independent from Z. katzeriana. The intermediate placement of Z. katzeriana in the analyses suggests a hybrid origin with Z. splendens and Z. loddigesii as putative ancestors.

Epidermal morphology and leaflet anatomy of Dioon (Zamiaceae) with comments on climate and environment

Flora ◽  
2018 ◽  
Vol 239 ◽  
pp. 20-44 ◽  
Author(s):  
Andrew P. Vovides ◽  
James A.R. Clugston ◽  
José Said Gutiérrez-Ortega ◽  
Miguel A. Pérez-Farrera ◽  
M.Ydelia Sánchez-Tinoco ◽  
...  
Keyword(s):  
Leaflet Anatomy ◽  
Epidermal Morphology
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