phototaxis

The species also has a negative phototaxis, meaning that it tends to move away from a light source.

Thus phototaxis signal is converted in bacteria' motion.

Many species display positive or negative phototaxis.

Signal transduction in phototaxis involves depolarization of the cell membrane.

This asymmetric positioning of the eyespot in the cell is essential for proper phototaxis.

In laboratory settings, the migration is light dependent but the direction of movement is not solely explained by positive phototaxis.

Most tests used allowed researches to directly observe the mutation, such as altering phototaxis or flight-reduction.

In contrast, Chlamydomonas phototaxis is mediated by archaeal-type rhodopsins.

Phototaxis: movement, usually towards light.

(1986) Excitation signal processing time in Halobacterium halobium phototaxis.

They are the molecular basis for a variety of light-sensing systems from phototaxis in flagellates to eyesight in animals.

Their functions range from bacterial photosynthesis (bacteriorhodopsin) to driving phototaxis (channelrhodopsins in flagellates).

Photophobia (or photophobic response) may also refer to a negative phototaxis or phototropism response.

He came up with biophysical explanations on phenomena like phototaxis and geotaxis, and also discovered the alternation of generations in the plant life cycle.

Currently, dozens of quantitative traits are being examined by researchers, including longevity, phototaxis, mating behavior, wing morphology and oviposition site preference.

Thus, the amoeba displays a negative phototaxis and a moth possesses a positive phototaxis.

The three-wheeled tortoise robots were capable of phototaxis, by which they could find their way to a recharging station when they ran low on battery power.

Motile bacteria are attracted or repelled by certain stimuli in behaviors called taxes: these include chemotaxis, phototaxis, energy taxis and magnetotaxis.

Positive phototaxis, or movement towards a light source, is advantageous for phototrophic organisms as they can orient themselves most efficiently to receive light for photosynthesis.

The second type of phototaxis is true phototaxis, which is a directed movement up a gradient to an increasing amount of light.

Seymour Benzer worked further on D. melanogaster in the 1960s, focusing on different novel phenotypes such as phototaxis and circadian rhythms.

His studies with retinal analogs and retinal proteins have made seminal contributions in understanding the structural and mechanistic basis of animal vision and phototaxis.

His pioneering research in botany and plant physiology resulted in several contributions in phototropism, phototaxis, differentiation, growth substances and even Tropical Forests.

The planktonic larvae of the king crab Lithodes aequispinus use a combination of positive phototaxis (movement towards the light) and negative gravitaxis (upward movement) .