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Temperature-dependent internode elongation in vegetative plants of Arabidopsis thaliana lacking phytochrome B and cryptochrome 1.

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Vegetative plants of Arabidopsis thaliana (L.) Heynh. form a compact rosette of leaves in which internode growth is virtually arrested. Rapid extension of the internodes occurs after flower buds are present in the reproductive apex. Under natural radiation, continuous light from fluorescent lamps,

Effects of Intentionally Treated Water on Growth of Arabidopsis thaliana Seeds With Cryptochrome Mutations.

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OBJECTIVE A previous experiment suggested that consumption of intentionally treated tea influenced subjective mood under double-blind, controlled conditions. To investigate that effect objectively, again under double-blind, controlled conditions, we studied whether Arabidopsis thaliana seeds

Plastid signals that affect photomorphogenesis in Arabidopsis thaliana are dependent on GENOMES UNCOUPLED 1 and cryptochrome 1.

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When plastids experience dysfunction they emit signals that help coordinate nuclear gene expression with their functional state. One of these signals can remodel a light-signaling network that regulates the expression of nuclear genes that encode particular antenna proteins of photosystem II. These

Effect of magnetic fields on cryptochrome-dependent responses in Arabidopsis thaliana.

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The scientific literature describing the effects of weak magnetic fields on living systems contains a plethora of contradictory reports, few successful independent replication studies and a dearth of plausible biophysical interaction mechanisms. Most such investigations have been unsystematic,

Flavin Adenine Dinucleotide and N5 ,N10 -Methenyltetrahydrofolate are the in planta Cofactors of Arabidopsis thaliana Cryptochrome 3.

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Members of the cryptochrome/photolyase family (CPF) of proteins utilize noncovalently bound light-absorbing cofactors for their biological function. Usually, the identity of these cofactors is determined after expression in heterologous systems leaving the question unanswered whether these cofactors

ERECTA controls low light intensity-induced differential petiole growth independent of phytochrome B and cryptochrome 2 action in Arabidopsis thaliana.

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Plants can respond quickly and profoundly to changes in their environment. Several species, including Arabidopsis thaliana, are capable of differential petiole growth driven upward leaf movement (hyponastic growth) to escape from detrimental environmental conditions. Recently, we demonstrated that

Photocycle dynamics of the E149A mutant of cryptochrome 3 from Arabidopsis thaliana.

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The E149A mutant of the cryDASH member cryptochrome 3 (cry3) from Arabidopsis thaliana was characterized in vitro by optical absorption and emission spectroscopic studies. The mutant protein non-covalently binds the chromophore flavin adenine dinucleotide (FAD). In contrast to the wild-type protein

Multiple interactions between cryptochrome and phototropin blue-light signalling pathways in Arabidopsis thaliana.

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Higher plants contain two structurally unrelated flavoprotein blue-light photoreceptors, the cryptochromes and the phototropins, which mediate largely distinct response pathways. Cryptochromes regulate plant development and photomorphogenesis whereas phototropins are primarily implicated in

In-Planta Expression: Searching for the Genuine Chromophores of Cryptochrome-3 from Arabidopsis thaliana.

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Göbel et al. present in this issue an exemplary study of identification of chromophores from Arabidopsis thaliana cryptochrome-3. Usually taken for granted, proteins and cofactors, respective chromophores, from heterologous expression are considered identical to material isolated from their genuine

Crystallization and preliminary X-ray analysis of cryptochrome 3 from Arabidopsis thaliana.

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Cryptochromes are flavoproteins which serve as blue-light receptors in plants, animals, fungi and prokaryotes and belong to the same protein family as the catalytically active DNA photolyases. Cryptochrome 3 from the plant Arabidopsis thaliana (cry3; 525 amino acids, 60.7 kDa) is a representative of

Cryptochrome 3 from Arabidopsis thaliana: structural and functional analysis of its complex with a folate light antenna.

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Cryptochromes are almost ubiquitous blue-light receptors and act in several species as central components of the circadian clock. Despite being evolutionary and structurally related with DNA photolyases, a class of light-driven DNA-repair enzymes, and having similar cofactor compositions,

Crystal structure of cryptochrome 3 from Arabidopsis thaliana and its implications for photolyase activity.

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Cryptochromes use near-UV/blue light to regulate a variety of growth and adaptive process. Recent biochemical studies demonstrate that the Cryptochrome-Drosophila, Arabidopsis, Synechocystis, Human (Cry-DASH) subfamily of cryptochromes have photolyase activity exclusively for single-stranded

Magnetic intensity affects cryptochrome-dependent responses in Arabidopsis thaliana.

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Cryptochromes are blue-light absorbing photoreceptors found in many organisms where they have been involved in numerous growth, developmental, and circadian responses. In Arabidopsis thaliana, two cryptochromes, CRY1 and CRY2, mediate several blue-light-dependent responses including hypocotyl growth

Magnetic field effects in Arabidopsis thaliana cryptochrome-1.

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The ability of some animals, most notably migratory birds, to sense magnetic fields is still poorly understood. It has been suggested that this "magnetic sense" may be mediated by the blue light receptor protein cryptochrome, which is known to be localized in the retinas of migratory birds.

Structure of the photolyase-like domain of cryptochrome 1 from Arabidopsis thaliana.

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Signals generated by cryptochrome (CRY) blue-light photoreceptors are responsible for a variety of developmental and circadian responses in plants. The CRYs are also identified as circadian blue-light photoreceptors in Drosophila and components of the mammalian circadian clock. These flavoproteins

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