Interspecific Interactions (CHUP)
2 total works
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 stationery existence, plants, this book makes unquestionably clear, are in constant and lively discourse.
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 stationery existence, plants, this book makes unquestionably clear, are in constant and lively discourse.
Plants face a daunting array of creatures which eat them, bore into them and use virtually every plant part for food or shelter. However, plants are far from defenceless under attack. Although they cannot flee their attackers, they can produce defences, such as thorns, and can actively alter their chemistry and physiology in response to damage. For instance, young potato leaves being eaten by potato beetles respond by producing chemicals which inhibit beetle digestive enzymes. Research on these induced responses to herbivory has proceeded since the 1980s, and this comprehensive evaluation and synthesis of a rapidly-developing field provides state-of-the-discipline reviews, and highlights areas of research which might be productive. This overview should appeal to a wide variety of theoretical and applied researchers in ecology, evolutionary biology, plant biology, entomology and agriculture.