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Orbicules: Morphology, Development and Functions

In this article we will discuss about:- 1. Morphology of Orbicules 2. Development of Orbicules 3. Functions. Ubisch bodies were first discovered by Rosanoff (1865) in close association with the tapetum. Kosmath (1927) suggested that these bodies should be called "Ubisch granules" while Erdtman (1961) proposed the term "orbicules". Morphology of Orbicules: Orbicules are small and generally spherical structures (2-5 [...]

By |2016-11-28T11:16:50+00:00November 28, 2016|Palynology|Comments Off on Orbicules: Morphology, Development and Functions

Morphological Characteristics of Pollen Grains

Morphological characteristics of pollen grains have been categorised into different groups: 1. Pollen Units 2. Polarity 3. Symmetry 4. Shape 5. Size 6. Apertures 7. Sub-Divisions of the Pollen Surface 8. Sporoderm Stratification 9. Exine Ornamentation 10. 'LO' Analysis. Characteristic # 1. Pollen Units: The pollen grains are produced within the anther of the flower. Pollen mother cells originate from [...]

By |2016-11-28T11:16:50+00:00November 28, 2016|Palynology|Comments Off on Morphological Characteristics of Pollen Grains

4 Main Types of Diagnoses of Allergy

The following points highlight the four main types of diagnoses of allergy. The types are: 1. Case History 2. Skin Testing 3. Provocation Test 4. Diagnosis of Allergy based on Total and Specific IgE Deter­minations. Type # 1. Case History: The case history holds a central position in allergy investigations. In order to get a comprehensive idea about the source [...]

By |2016-11-28T11:16:49+00:00November 28, 2016|Palynology|Comments Off on 4 Main Types of Diagnoses of Allergy
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