Words similar to dark-grown
Example sentences for: dark-grown
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This result, obtained with cells incubated at 25°C, was consistent with localization of LHCPs on envelope membranes in cells immediately after initiation of thylakoid biogenesis at 38°C [ 16 ] . At the higher temperature, not all the newly synthesized LHCPs were incorporated into envelope membranes, and the excess accumulated in cytosolic vacuoles [ 16 17 ] . This evidence for the envelope as the site of initial interaction of LHCPs with Chl was also supported by proliferation of envelope-derived vesicles in dark-grown Chlamydomonas cells exposed to only a few minutes of light [ 18 ] and the lack of thylakoids in a mutant of Arabidopsis deficient in a protein apparently required for formation of vesicles from the inner membrane of the envelope [ 19 ] .
Studies of the same organ from different treatment regimes, such as dark-grown and light-grown seedlings of Arabidopsis [ 10] showed only a 16% difference.
It is present in tomato leaves, fruits, flowers, light-grown seedlings, and dark-grown seedlings (Fig.
Total RNA from tomato leaves (5-15 mm), fruits (3-8 mm in diameter), whole flowers, and light-grown and dark-grown tomato seedlings was isolated with the Trizol Reagent from Gibco BRL (Gaithersburg, MD).
In contrast, dark-grown seedlings undergo skotomorphogenesis (or etiolation), typified by elongated hypocotols and closed cotyledons [ 1 ] . COP1 was first identified through genetic screens as a negative regulator of light regulated development in Arabidopsis [ 2 ] . Arabidopsis cop1 mutant seedlings are constitutively photomorphogenic even when grown in the dark, and the severe cop1 mutants cause lethality in the late seedling stage, indicating that COP1 is essential for plant development [ 2 3 ] . Arabidopsis COP1 (Arabidopsis thaliana COP1, AtCOP1) is essential for the proteasome-dependent degradation of two transcription factors, HY5 and HYH [ 4 5 ] . These two homologous bZIP-type transcription factors directly interact with AtCOP1 and are capable of binding to light-responsive promoters to activate the transcription of many target genes [ 5 6 ] . Genome wide micro-array analysis shows that AtCOP1 regulates most, if not all, of the light-responsive genes under various light conditions [ 7 8 ] , substantiating the notion that AtCOP1 functions as a crucial developmental switch through targeting key transcription factors for degradation, thereby controlling the light-responsive gene expression and photomorphogenic development.
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