Richard Karban

Plants lack central nervous systems; the mechanisms coordinating plant sensing, behavior, and communication are quite different from the systems that accomplish similar tasks in animals. The challenges that face plants are similar to those facing animals—finding resources, avoiding predators, pathogens, and abiotic stresses, acquiring mates, placing offspring in situations where they are likely to be successful. The modes of selection are also basically similar for plants and animals. As a result, natural selection has led to the evolution of solutions to these challenges that are often analogous. Nonetheless, there are many important differences between plants and animals that have led to very different adaptations, …
… There is a consensus that communication occurs only when the signal is sent, is received, and causes a response. Communication requires that all three steps be present, …

1 thought on “Richard Karban

  1. shinichi Post author

    Plant Sensing and Communication (Interspecific Interactions)

    by Richard Karban

    The news that a flowering weed—mousear cress (Arabidopsis thaliana)—can sense the particular chewing noise of its most common caterpillar predator and adjust its chemical defenses in response led to headlines announcing the discovery of the first “hearing” plant. As plants lack central nervous systems (and, indeed, ears), the mechanisms behind this “hearing” are unquestionably very different from those of our own acoustic sense, but the misleading headlines point to an overlooked truth: plants do in fact perceive environmental cues and respond rapidly to them by changing their chemical, morphological, and behavioral traits.

    In Plant Sensing and Communication, Richard Karban provides the first comprehensive overview of what is known about how plants perceive their environments, communicate those perceptions, and learn. Facing many of the same challenges as animals, plants have developed many similar capabilities: they sense light, chemicals, mechanical stimulation, temperature, electricity, and sound. Moreover, prior experiences have lasting impacts on sensitivity and response to cues; plants, in essence, have memory. Nor are their senses limited to the processes of an individual plant: plants eavesdrop on the cues and behaviors of neighbors and—for example, through flowers and fruits—exchange information with other types of organisms. Far from inanimate organisms limited by their stationary existence, plants, this book makes unquestionably clear, are in constant and lively discourse.


Leave a Reply

Your email address will not be published. Required fields are marked *