Advances in Comparative and Environmental Physiology: Comparative Aspects of Mechanoreceptor Systems
Fumio Ito
дек. 2012 г. · Advances in Comparative and Environmental Physiology Книга 10 · Springer Science & Business Media
Е-книга
309
Страници
reportОцените и рецензиите не се потврдени Дознајте повеќе
За е-книгава
In the past 5 years there has been an enormous increase of evidence that the ion channels activated by mechanical force are common to a wide variety of cell types. Mechanosensitive (MS) ion channels form a small proportion of the total channel population. They are now found in more than 30 cell types from E. coli, yeast, to plant, invertebrate, and vertebrate cells, where they occur in virtually all types of cells from bone to smooth muscle, as well as neurons. The majority of MS channels are permeable to monovalent cations and are slightly selective for K+ over Na +. How 2 ever, there are several reports of anion-selective MS channels, MS Ca + channels, and MS channels with large conductances that do not dis criminate markedly between cations and anions. Recently B. Hille has postulated possible evolutionary relationships between several types of ion channels, with mechanosensitive channels predating even the eukaryotes. Two voltage-gated channel types originate with the stem eukaryotes, as deduced from the presence of voltage-gated K+ 2 and Ca + channels in protozoa, algae, or higher plants. Agonist-gated chan nels as well as voltage-gated Na + channels appear with the earliest metazoan animals, as deduced from the presence of Na + spikes and fast chemical synapses in cnidaria (coelenterates), ctenophores, and all higher animals.
Оценете ја е-книгава
Кажете ни што мислите.
Информации за читање
Паметни телефони и таблети
Инсталирајте ја апликацијата Google Play Books за Android и iPad/iPhone. Автоматски се синхронизира со сметката и ви овозможува да читате онлајн или офлајн каде и да сте.
Лаптопи и компјутери
Може да слушате аудиокниги купени од Google Play со користење на веб-прелистувачот на компјутерот.
Е-читачи и други уреди
За да читате на уреди со е-мастило, како што се е-читачите Kobo, ќе треба да преземете датотека и да ја префрлите на уредот. Следете ги деталните упатства во Центарот за помош за префрлање на датотеките на поддржани е-читачи.
