Ethylene Biology. More Than a Gas

Biology is more theoretical than physics

The word "theory" is used in at least two senses--to denote a body of widely accepted laws or principles, as in "Darwinian theory" or "quantum theory," and to suggest a speculative hypothesis, often relying on mathematical analysis, that has not been experimentally confirmed. It is often said that there is no place for the second kind of theory in biology and that biology is not theoretical but...

Cell biology: More than skin deep

In studying how stem cells make and maintain tissues, nearly every chapter of a cell biology textbook is of interest. The field even allows us to venture where no chapters have yet been written. In studying this basic problem, we are continually bombarded by nature's surprises and challenges.

Plant hormones: More than one way to detect ethylene

Plants use the gas ethylene (C2H4) as a signaling molecule for regulating a variety of developmental processes, including fruit and flower senescence, sex determination in some monoecious species, cell elongation and pathogen responses [1]. The final reactions of the ethylene biosynthetic pathway have been elucidated [2], and information on its signaling apparatus is beginning to emerge [3,4]. ...

More Than Metaphor: Online Resources for Teaching Cancer Biology

oct-4: more than a pluripotent marker?

received: 23/sep/2008, accepted: 23/nov/2008oct-4/ pou5f1/ oct-3, a pou domain family protein acts as a crucial transcription factor dur- ing embryonic development. it helps in maintenance of self renewal as well as pluripotential state of embryonic stem (es) cells. its expression starts right from 2 cell stage especially prior to 8 cell stage till the blastocyst stage where it is strongly exp...