geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

The interplay of light and the circadian clock. Independent dual regulation of clock-controlled gene ccg-2(eas)


, : The interplay of light and the circadian clock. Independent dual regulation of clock-controlled gene ccg-2(eas). Plant Physiology 102(4): 1299-1305

Ambient light is the major agent mediating entrainment of circadian rhythms and is also a major factor influencing development and morphogenesis. We show that in Neurospora crassa the expression of clock-controlled gene 2 (ccg-2), a gene under the control of the circadian clock and allelic to the developmental gene easy wettable (eas), is regulated by light in wild-type strains. Light elicits a direct and important physiological effect on ccg-2(eas) expression as demonstrated using several mutant Neurospora strains. In white collar mutants (wc-1 and wc-2) that are "blind" to blue light, ccg-2(eas) mRNA shows no variation following illumination with saturating light. By contrast, ccg-2(eas) mRNA is photoinduced in clock-nuff strains such as frequency9 (bd;frq9). The results in the clock mutants show that an intact circadian oscillator is not required for light induction of ccg-2(eas). Thus, ccg-2(eas) is subject to a dual regulation that involves separable regulation by light and circadian rhythm.

US$19.90

PMID: 8278550

DOI: 10.1104/pp.102.4.1299


Other references

Conley, J.F., 2003: Vital bleaching: a vanishing revenue center?. Journal of the California Dental Association 31(7): 521-522

Birbis, P., 1966: Solitary cysts of the breast. The position of solitary cysts within the various mastoses is defined, their diagnosis, development, and treatment discussed. On the endocrine level the difficulty lies in determining which hormonal disturbance preceded the formation of a cyst on...

Pennington, R.L., 2003: STDs in prehistory Why they mattered. American Journal of Physical Anthropology Supplement (36): 166

Dujardin, M.; Hanna, W.W., 1984: Pseudogamous parthenogenesis and fertilization of a pearl millet (times) Pennisetum orientale apomictic derivative. The Journal of Heredity 75: 3-4

Cunningham, J.R., 1988: Dosimetric principles. Radiographics 8(4): 785-812

Minguet, J., 1951: The new pavilion of radiology of the University Hospital of Liege. Techniques Hospitalieres, Medico-Sociales et Sanitaires 6(70): 39-45

Burden, K., 1984: A survey of hedgehog road mortality in the Castleford district 1980-82. Yorkshire Naturalists Union Bulletin, 5-7 No. 2

Dang T P., 1972: Asymmetric catalytic reduction with transition metal complexes part 1 a catalytic system of rhodium part 1 with levo 2 3 o iso propylidene 2 3 dihydroxy 14 bis diphenylphosphino butane a new chiral di phosphine. Journal Of The American Chemical Society: 6429-6433

Ushakov I.B.; Razgovorov B.L., 1985: The 2 types of a loss of sight blindness exhibited by cats and dogs after local irradiation of their heads. After local irradiation of heads with doses of 50-100 Gy [grays], cats and dogs exhibited 2 types of a loss of sight: early blindness (during the 1st 2 h) noted only in cats after a dose of 100 Gy and delayed blindness in cats after a dose of 50 G...

Pavlovskii, E.N.; Skruinnik, A.N., 1937: Observations on the Biology of Ornithodorus papillipes.. An account is given of investigations on the bionomics of Ornithodoros tholozani, Lab. & Megn. (papillipes, Bir.) carried out in the laboratory in Leningrad in 1935 and 1936, and the results are supplemented from previous work by the authors and c...