Common Sense about Taste: From Mammals to Insects
نویسندگان
چکیده
The sense of taste is a specialized chemosensory system dedicated to the evaluation of food and drink. Despite the fact that vertebrates and insects have independently evolved distinct anatomic and molecular pathways for taste sensation, there are clear parallels in the organization and coding logic between the two systems. There is now persuasive evidence that tastant quality is mediated by labeled lines, whereby distinct and strictly segregated populations of taste receptor cells encode each of the taste qualities.
منابع مشابه
Gustatory Perception and Behavior in Drosophila melanogaster
The sense of taste is essential for the survival of virtually all animals. Considered a 'primitive sense' and present in the form of chemotaxis in many bacteria, taste is also a sense of sophistication in humans. Regardless, taste behavior is a crucial activity for the world's most abundant (insects) and most successful (mammals) inhabitants, providing a means of discrimination between nutrient...
متن کاملBad Taste Protects Fruit Flies from Eating a Toxic Amino Acid in Plants
Besides enhancing the pleasure of eating, our sense of taste can steer us away from poisonous foods. Many plants, for example, produce bitter-tasting toxins, such as caffeine and quinine, to deter predation by herbivores from cows to insects. But it remains a mystery how animals developed their capacity to detect—and so avoid—the tens of thousands of plant toxins, which include alkaloids, pheno...
متن کاملHighlight: A Matter of Taste—Whales Have Abandoned Their Ability to Taste Food
Living in a world of prepared salads, soups, and sandwiches, our survival may not seem to hinge upon careful tasting what we eat. But for most of our species’ history, it was a life or death matter, and—for most other animals—it still is. Their sense of taste keeps them alive. "The most significant decision you make in your life everyday is, when you put something into your mouth, whether to sw...
متن کاملThe sense of taste: neurobiology, aging, and medication effects.
The sense of taste is an oral chemical sense in mammals that is involved in the choice of foods. Initial transduction of taste stimuli occurs in taste buds, which are distributed in four discrete fields in the oral cavity. Medications can affect the taste buds and ion channels in taste-bud cell membranes involved in stimulus transduction. The sense of taste gradually declines with aging, with b...
متن کاملFunctional interaction between TAS2R receptors and G-protein alpha subunits expressed in taste receptor cells.
Bitter taste perception is a conserved chemical sense against the ingestion of poisonous substances in mammals. It could be mediated by G protein-coupled receptors that need the appropriate G proteins to transduce the signals. TAS2R receptors and a G protein α subunit, α–gustducin are believed to be key molecules for its perception (Margolskee, 2002; Montmayeur and Matsunami, 2002), but little ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Cell
دوره 139 شماره
صفحات -
تاریخ انتشار 2009