October, 2019

• 12 October

  Green Algae & The Origin of Higher Plants

  

  The transformation of green, photosynthetic algae from their original simple aquatic life to advanced terrestrial plants was a key event in the history of planet Earth, ranking in significance with the origin of photosynthesis. It is quite obvious from phylogenetic, molecular and morphological studies that higher plants are derived from …

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• 12 October

  Algae: An Introduction

  

  Phycology or algology is the study of algae. The word ‘Phycology’ is derived from the Greek word ‘Phykos’ meaning seaweed. The algae are thallophytes (plants lacking roots, stems and leaves) that have chlorophyll as their primary photosynthetic pigment and lack a sterile covering of cells around their reproductive cells or …

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• 7 October

  Material Transport & Energy Flux in Ecosystem

  

  First model – proposed by Jude (1940) and Lindemann (1942). Later on more sophisticated models proposed, by Odum (1957), Teal (1957) and Mann (1969). Model proposed by Mann (1969) is shown in Fig.  Two principles apply in it: According to laws of thermodynamics, energy can be up taken only once, …

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• 6 October

  Origin Of Bryophytes

  

  Though almost in all cases, when we talk about the origin, it goes about the discussion of fossils, bryophytes don’t have any primitive form than what at present-day it is. Usually, the study about the origin of bryophytes is something like a hypothesis- based upon the comparative studies about the …

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• 6 October

  Biomass Destruction in Aquatic Bodies

  

  Biomass Biomass is the weight of living matter per unit area at a given time at a given place. Future of Biomass In aquatic ecosystem, produced biomass may either enter into food chain or undergoes destruction. In lentic waters, nutrients present in biomass get recycled, except sedimentation of small fraction. …

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• 2 October

  Takhtajan’s System of Classification

  

  Present-day Armenian-born botanist & systematist Armen Leonovich Takhtajan (1910-2009) was one of the most influential figures of 20th century in the field of plant evolution, systematics, and biogeography. His other interests included morphology of flowering plants, paleobotany, and the flora of the Caucasus (region between the Black sea & the Caspian sea). Good to know …

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September, 2019

• 24 September

  Anthoceros: The Hornworts

  

  Systematic position Division: Bryophyta Class: Anthoceropsida Order: Anthocerotales Family: Anthocerotaceae Genus: Anthoceros Habit and Habitat The name ‘Anthoceros’ means ‘flower horn’ and refers to the characteristics horn-shaped saprophyte. Anthocerosis a genus of hornworts in the family Anthocerotaceae. With about 250 species, it is widely distributed in the tropical and temperate regions …

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• 19 September

  Transcription: The Mechanism of pre-mRNA Synthesis

  

  Transcription is the synthesis of RNA molecule using one of the DNA strands as a template. It is the first step in the transfer of genetic information from genotype to phenotype. However, this process of transcription is a highly selective one i.e definite genes are transcribed only when their products …

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• 9 September

  Regulation of Gene Expression in Prokaryotes: General features and Significance

  

  Every cell of an organism possesses all the structural genes or cistrons. The genes produce proteins and control the activities of the organism. But a genetic system doesn’t allow them to function all at a time in order to avoid enzymatic chaos. Many gene products are only needed occasionally by …

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August, 2019

• 21 August

  Sphagnum: A Useful Peat

  

  (AB: This article only contains the use of peat from Sphagnum and it’s uses in gardening. Although some constructive discussions are in here to facilitate it, they are not exhaustive.) If you are fond of gardening or concerned about the dying condition of your trees, this article will be helpful …

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