Regeneration, an all-inclusive term, embraces a wide variety of functions. In the context of animals regeneration refers to a tendency to replace the lost parts. However, unlike animal cells, plant cells even after undergoing differentiation retain the capacity to revert to meristematic state and are endowed with an inherent capacity to regenerate into entire plants. […]
Regeneration in Pteridophytes | Archegoniate Plants | Botany
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Factors Regulating Apogamy in Pteridophytes | Botany
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A number of factors are found to favour apogamous response in ferns. Some of the factors are: 1. Carbohydrate Nutrition 2. Mineral Nutrition 3. Gene Dosage 4. Light Quality 5. Hormones. Factor # 1. Carbohydrate Nutrition: Dark grown cultures of P. aquilinum do not form apogamous sporophytes even in the presence of sucrose. The increased […]
Anatomy of Gnetum (With Diagram) | Gymnosperms | Botany
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In this article we will discuss about the anatomy of gnetum with the help of a suitable diagram. The root of Gnetum has diarch xylem, the endodermis bounds the multi-layered pericycle. The cortex of parenchymatous cells is filled with starch; the thick-walled fibres are also common in cortex. Tracheids have uni-seriate, bordered pits with conspicuous […]