Plant biology is biology, isn’t it?

Stranger than Fiction

Plant biology: You can’t make this stuff up.

By Mary Beth Aberlin | January 1, 2014

Excerpt: “Plants succeeded in dramatically expanding their genomes again and again through a process of chromosome-number multiplication called polyploidy, which usually begins with the joining of two diploid gametes that arise because of errors in cell division.”

My comment: Errors in cell division is a phrase that suggests mutations are somehow responsible for variation in the genome. In animals, nutrient-dependent pheromone-controlled amino acid substitutions are responsible for increasing organismal complexity. Thus, the real challenge may be to explain why plants and animals exhibit dramatic variation in genome size and complexity since the molecular mechanism of organismal complexity are probably the same. If so, the challenge can be placed into the context of ecological adaptations.

Use of animal models helped to eliminate theories about mutational burdens. Instead, it became clear that nutrient-dependent amino acid substitutions determine different cell types in different individuals of different species. Vitamins and minerals are as likely to biophysically constrain mutations and stabilize plant genomes as they are to stabilize animal genomes.

The metabolism of nutrients to species-specific chemical signals that control the physiology of reproduction may also modulate symbiotic interactions in the ecological niches of plants. If so, the ecological interactions of plants probably incorporate conserved molecular mechanisms of epigenetics in animals.

Nutrient-dependent ecological niche construction in plants may not result in what is commonly represented as chemically-controlled “social” niche construction of animals. However, it seems that others have realized that plants are social species, too. Thus, the epigenetic landscape probably becomes the physical landscape of plant DNA via nutrient-dependent chemically-controlled reproduction, which happens without mutations in the organized genomes of animal species.

You can make up theories about how plant biology works and try to make mutation-driven evolution fit the theories, but ultimately someone will be forced to look at conserved molecular mechanisms and biological facts.

About James V. Kohl 1308 Articles
James Vaughn Kohl was the first to accurately conceptualize human pheromones, and began presenting his findings to the scientific community in 1992. He continues to present to, and publish for, diverse scientific and lay audiences, while constantly monitoring the scientific presses for new information that is relevant to the development of his initial and ongoing conceptualization of human pheromones. Recently, Kohl integrated scientific evidence that pinpoints the evolved neurophysiological mechanism that links olfactory/pheromonal input to genes in hormone-secreting cells of tissue in a specific area of the brain that is primarily involved in the sensory integration of olfactory and visual input, and in the development of human sexual preferences. His award-winning 2007 article/book chapter on multisensory integration: The Mind’s Eyes: Human pheromones, neuroscience, and male sexual preferences followed an award winning 2001 publication: Human pheromones: integrating neuroendocrinology and ethology, which was coauthored by disinguished researchers from Vienna. Rarely do researchers win awards in multiple disciplines, but Kohl’s 2001 award was for neuroscience, and his 2007 “Reiss Theory” award was for social science. Kohl has worked as a medical laboratory scientist since 1974, and he has devoted more than twenty-five years to researching the relationship between the sense of smell and the development of human sexual preferences. Unlike many researchers who work with non-human subjects, medical laboratory scientists use the latest technology from many scientific disciplines to perform a variety of specialized diagnostic medical testing on people. James V. Kohl is certified with: * American Society for Clinical Pathology * American Medical Technologists James V. Kohl is a member of: * Society for Neuroscience * Society for Behavioral Neuroendocrinology * Association for Chemoreception Sciences * Society for the Scientific Study of Sexuality * International Society for Human Ethology * American Society for Clinical Laboratory Science * Mensa, the international high IQ society