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  • 1997
  • Furthermore, there are publications from the anthropological field that relate the possible use of vision-inducing plants and techniques to artistic activity (Lewis-Williams 1997). (thefreelibrary.com)
  • varieties
  • Indian Science Congress Association, life member Indian Phytopathological Society, life member Indian Virological Society, fellow Deutsche Phytomedizinische Gesellschaft Deutsche Virologische Gesellschaft Scientific papers Dutt, M., Sarkar, S. & Dutta, C.T.: Physiological studies on diploid and polyploid varieties of banana. (wikipedia.org)
  • Two or more taxa once considered conspecific (of the same species) may later be subdivided into infraspecific taxa (taxa within a species, such as bacterial strains or plant varieties), but this is not a species complex. (wikipedia.org)
  • term
  • The term "autoinduction" was first coined in 1970, when it was observed that the bioluminescent marine bacterium Vibrio fischeri produced a luminescent enzyme (luciferase) only when cultures had reached a threshold population density. (wikipedia.org)
  • Science
  • Science is a body of empirical, theoretical, and practical knowledge about the natural world, produced by scientists who emphasize the observation, explanation, and prediction of real world phenomena. (wikipedia.org)
  • organisms
  • A forest is an ecosystem-a community of plants and animals interacting with one another and with the physical environment (see ecology ecology, study of the relationships of organisms to their physical environment and to one another. (thefreedictionary.com)
  • Natural philosophy and natural theology encompassed the conceptual and metaphysical basis of plant and animal life, dealing with problems of why organisms exist and behave the way they do, though these subjects also included what is now geology, physics, chemistry, and astronomy. (wikipedia.org)
  • certain
  • As early as the 18th century, C. Linnaeus proposed flower clocks, based on the ability of the flowers of different plants to open and close at certain times of the day. (thefreedictionary.com)
  • soil
  • and air plants (see epiphyte epiphyte or air plant, any plant that does not normally root in the soil but grows upon another living plant while remaining independent of it except for support (thus differing from a parasite). (thefreedictionary.com)
  • the clouds release rain that is taken up by the soil, absorbed by plants, and passed on to feeding animals-which also drink directly from pools and lakes that catch the rain. (thefreedictionary.com)
  • minimal
  • A plant only reacts to gravity if the gravistimulation is maintained for longer than a critical amount of time, called the minimal presentation time (MPT). (wikipedia.org)
  • Activity
  • In addition to lipid extracts with JH activity, a phenomenon found in various human organs, microorganisms and plants, JH-mimetic materials were found in American paper products in 1964. (brillonline.com)
  • components
  • This phenomenon was termed "autoinduction" because it involved a molecule (autoinducer) that accumulated in a growth medium and induced the synthesis of components of the luminescence system. (wikipedia.org)
  • time
  • Thus in a year's time it would take millions of plants weighing tons to feed the several steer weighing a few tons that could support one or two people. (thefreedictionary.com)
  • allows
  • Quorum sensing is a phenomenon that allows both Gram-negative and Gram-positive bacteria to sense one another and to regulate a wide variety of physiological activities. (wikipedia.org)
  • This phenomenon allows them to act as an antifreeze at concentrations 1/300th to 1/500th of those of other dissolved solutes. (wikipedia.org)
  • expression
  • 2002). Additionally, gene expression, intracellular signaling, and hormone response may also affect the power of self-thinning in plant communities indirectly. (sinica.edu.tw)
  • Enhancement of creative expression and entoptic phenomena as after-effects of repeated ayahuasca ceremonies. (thefreelibrary.com)
  • systems
  • The optimal rotational speed has been investigated by comparison to 'true' responses to microgravity as seen in space-grown plants, and determined to be between 0.3 and 3 rpm for most plant systems. (wikipedia.org)
  • production
  • this may cause an increase in ethylene production, which may in turn cause some of the phenomena otherwise attributed to agravitropism. (wikipedia.org)
  • cell wall
  • Lignin is an integral cell wall component of all vascular plants. (plantphysiol.org)
  • Lignin is a polymeric constituent of the plant cell wall and, second to cellulose, is the most abundant organic compound in the biosphere. (plantphysiol.org)
  • The plant cell wall was easily visible even with these early microscopes but no similar barrier was visible on animal cells, though it stood to reason that one must exist. (wikipedia.org)
  • experiences
  • The slow rotation means that the plant experiences a gravitational pull that is averaged over 360 degrees, thus approximating a weightless environment. (wikipedia.org)
  • water
  • The water in plant and animal wastes and dead tissue then evaporates and can be recycled. (thefreedictionary.com)
  • The phenomenon has been studied in some detail in frogs which, although not hibernators in the true sense, can endure very low water temperatures under the conditions of profound hypoxia that exist when they lie dormant for long periods below the surface. (nottingham.ac.uk)
  • early
  • The early successful purification of aequorin led to the first experiments involving the injection of the protein into the tissues of living animals to visualize the physiological release of calcium in the muscle fibers of a barnacle. (wikipedia.org)
  • dominant
  • One of the dominant factors that determine the heart rate in physiological conditions is its coupling with the respiratory rhythm. (ebscohost.com)
  • While many of the groups which appeared earlier continue to thrive, as exemplified by algal dominance in marine environments, more recently derived groups have also displaced previously ecologically dominant ones, e.g. the ascendance of flowering plants over gymnosperms in terrestrial environments. (wikipedia.org)
  • responses
  • The optimal rotational speed has been investigated by comparison to 'true' responses to microgravity as seen in space-grown plants, and determined to be between 0.3 and 3 rpm for most plant systems. (wikipedia.org)
  • conditions
  • The internal thermoregulation process is one aspect of homeostasis: a state of dynamic stability in an organism's internal conditions, maintained far from thermal equilibrium with its environment (the study of such processes in zoology has been called physiological ecology). (wikipedia.org)
  • animals
  • Early man during a drug search was guided by instinct and incidental observations, imitated or animals that eat during illness, certain plants that are not, however, their daily diet (eg, monkeys infected with malaria quinquina chew on the bark of which quinine is known, while cattle suffering of the gastrointestinal tract consumes chamomile or yarrow, which are normally omitted. (gramzdrowia.pl)
  • The early successful purification of aequorin led to the first experiments involving the injection of the protein into the tissues of living animals to visualize the physiological release of calcium in the muscle fibers of a barnacle. (wikipedia.org)
  • Before biology, there were several terms used for the study of animals and plants. (wikipedia.org)
  • animal
  • These included mescaline, which he showed through a combination of animal and self-experiments was the compound responsible for the psychoactive properties of the plant. (wikipedia.org)
  • Natural philosophy and natural theology encompassed the conceptual and metaphysical basis of plant and animal life, dealing with problems of why organisms exist and behave the way they do, though these subjects also included what is now geology, physics, chemistry, and astronomy. (wikipedia.org)
  • Charles Darwin broke with the tradition by emphasising the flaws and limitations which occurred in the animal and plant worlds. (wikipedia.org)
  • Many aspects of an animal or plant can be correctly called adaptations, though there are always some features whose function remains in doubt. (wikipedia.org)
  • ancient
  • The oldest written document containing a description of the medicinal plant origin is the book Pent-Sao originating from ancient China (prior to about 2700 BC). (gramzdrowia.pl)