Structural diversity and adaptations in some Mediterranean evergreen sclerophyllous species

Four evergreen sclerophyllous species were investigated morphologically and anatomically. Buds, leaves and roots from Ceratonia siliqua, Olea europaea, Pistacia lentiscus and Quercus coccifera were studied and compared for structural diversity. Analysis of the anatomical data suggested diverging features. The ecological equivalence of these species cannot be attributed to their structure. © 1992

An anatomical study of seasonal dimorphism in the leaves of Phlomis fruticosa

Seasonal dimorphism is considered from the anatomical viewpoint. Significant differences can be observed between winter and summer leaves obtained from the same individuals. Winter leaves are thick, amphistomatic with a large number of chloroplasts in the cells of the loose mesophyll. The thinner summer leaves are hairier and hypostomatic, with compact mesophyll and cells that accumulate phenolics and crystals. CbJoroplasts are fewer in number and less developed, and at the ultrastructural level they present pronounced differences from those of the winter leaves. © 1989 Annals of Botany Company

An anatomical study of seasonal dimorphism in the leaves of Phlomis fruticosa

Seasonal dimorphism is considered from the anatomical viewpoint. Significant differences can be observed between winter and summer leaves obtained from the same individuals. Winter leaves are thick, amphistomatic with a large number of chloroplasts in the cells of the loose mesophyll. The thinner summer leaves are hairier and hypostomatic, with compact mesophyll and cells that accumulate phenolics and crystals. CbJoroplasts are fewer in number and less developed, and at the ultrastructural level they present pronounced differences from those of the winter leaves. © 1989 Annals of Botany Company

Histological investigation of the leaf and leaf-originating calli of Lavandula vera L.

Structures or cells with secreting activity were localized in the leaves of Lavandula vera. Light and electron microscopy, both TEM and SEM, were applied for the investigation of the secreting sites. A series of histochemical reactions was applied and a spectrum of metabolites produced was identified. Terpenes, flavonoids, steroids, alkaloids, and various types of phenolics were present. Leaf tissue was cultured and callus was produced. Callus cell masses were also investigated for their structure and secreting activity. Callus cells were found to be synthetically active and to produce - as leaf cells do-compounds of potential interest. © 2007 Science From Israel / LPPLtd

Leaf Structure and Histochemical Analysis of Camphor Tree (Cinnamomum Camphora), a Plant Used in Traditional Remedies

An integrated microscopical investigation of the secretive activity in the above ground parts such as the leaves, petioles, and young stems of the camphor tree (Cinnamomum camphora) was performed. Different kinds of cells were localized accumulating different metabolites as this was demonstrated by histochemical tests. The wide distribution of oil and mucilage cells and other idioblasts was set out. Virtually all palisade cells appeared to be involved in secondary metabolite production which may explain the complexity of the plant extracts and their wide range of therapeutic anti-inflammatory and anti-oxidative effects they have in traditional medicine. © 2021 Taylor & Francis Group, LLC