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chlorophyll a/gåsemad
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The AtCAO gene, encoding chlorophyll a oxygenase, is required for chlorophyll b synthesis in Arabidopsis thaliana.
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Chlorophyll b is synthesized from chlorophyll a and is found in the light-harvesting complexes of prochlorophytes, green algae, and both nonvascular and vascular plants. We have used conserved motifs from the chlorophyll a oxygenase (CAO) gene from Chlamydomonas reinhardtii to isolate a homologue
Genes encoding light-harvesting chlorophyll a/b-binding proteins in papaya (Carica papaya L.) and insight into lineage-specific evolution in Brassicaceae.
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Light-harvesting chlorophyll a/b-binding (Lhc) proteins comprise a plant-specific superfamily involved in photosynthesis and stress responses. Despite their importance, little is known in papaya (Carica papaya), an economically important tree fruit crop as well as a species close to the model plant
Genomics analysis of the light-harvesting chlorophyll a/b-binding (Lhc) superfamily in cassava (Manihot esculenta Crantz).
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The light-harvesting chlorophyll a/b-binding (Lhc) superfamily, composed of several distinct antennae protein families, plays essential roles in light capture and photoprotection in plants. Compared with the extensive research in Arabidopsis thaliana and certain species, little is known about this
Structure and expression of three light-harvesting chlorophyll a/b-binding protein genes in Arabidopsis thaliana.
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The genome of Arabidopsis thaliana is exceedingly small, in part because it lacks the large middle repetitive DNA component characteristic of other plants. In this paper we have characterized a member of the low copy DNA component: the gene family for the light-harvesting chlorophyll a/b-protein.
Structural and functional analyses of Arabidopsis thaliana chlorophyll a/b-binding protein (cab) promoters.
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Arabidopsis thaliana carries three functional copies of the chlorophyll a/b-binding protein (cab) gene which code for an identical mature protein. DNA sequence comparison of all three cab promoters indicated that cab2 and cab3 are more closely related compared to cab1. Although the highest degree of
Sequence of the fourth and fifth Photosystem II type I chlorophyll a/b-binding protein genes of Arabidopsis thaliana and evidence for the presence of a full complement of the extended CAB gene family.
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A second locus (Lhb1B) encoding Photosystem II Type I chlorophyll a/b-binding (CAB) polypeptides was identified in Arabidopsis thaliana. This locus carries two genes in an inverted orientation. The predicted sequences of the polypeptides encoded by these two genes show substantial divergence in
Chlorophyll a fluorescence, under half of the adaptive growth-irradiance, for high-throughput sensing of leaf-water deficit in Arabidopsis thaliana accessions.
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BACKGROUND
Non-invasive and high-throughput monitoring of drought in plants from its initiation to visible symptoms is essential to quest drought tolerant varieties. Among the existing methods, chlorophyll a fluorescence (ChlF) imaging has the potential to probe systematic changes in photosynthetic
Expression of Light-Harvesting Chlorophyll a/b-Protein Genes Is Phytochrome-Regulated in Etiolated Arabidopsis thaliana Seedlings.
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Phytochrome action results in a large and rapid increase in the light-harvesting chlorophyll a/b-protein (LHCP) mRNA level in etiolated seedlings of Arabidopsis thaliana: the RNA increase is detectable within 1 hour after 1 minute red illumination, reaches a maximum 30-fold higher than the dark
Mg-dechelation of chlorophyll a by Stay-Green activates chlorophyll b degradation through expressing Non-Yellow Coloring 1 in Arabidopsis thaliana.
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The first step in chlorophyll a degradation is the extraction of the central Mg. This reaction is catalyzed by Mg-dechelatase encoded by Stay-Green (SGR) in land plants. SGR extracts Mg from chlorophyll a but not from chlorophyll b, and chlorophyll b must be converted to chlorophyll a before
Light stress-regulated two-helix proteins in Arabidopsis thaliana related to the chlorophyll a/b-binding gene family.
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The chlorophyll a/b, chlorophyll a/c, and chlorophyll a/a light-harvesting proteins are part of an extended gene family that also includes the transiently expressed stress proteins, the Elips (early light-induced proteins). Four Elip homologue proteins, encoded by single-copy nuclear genes, have
Light-harvesting chlorophyll a/b-binding protein-coding genes in jatropha and the comparison with castor, cassava and arabidopsis.
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The Lhc (light-harvesting chlorophyll a/b-binding protein) superfamily represents a class of antennae proteins that play indispensable roles in capture of solar energy as well as photoprotection under stress conditions. Despite their importance, little information has been available beyond model
Excitation energy transfer and charge separation are affected in Arabidopsis thaliana mutants lacking light-harvesting chlorophyll a/b binding protein Lhcb3.
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The composition of LHCII trimers as well as excitation energy transfer and charge separation in grana cores of Arabidopsis thaliana mutant lacking chlorophyll a/b binding protein Lhcb3 have been investigated and compared to those in wild-type plants. In grana cores of lhcb3 plants we observed
Identification of the 7-hydroxymethyl chlorophyll a reductase of the chlorophyll cycle in Arabidopsis.
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The interconversion of chlorophyll a and chlorophyll b, referred to as the chlorophyll cycle, plays a crucial role in the processes of greening, acclimation to light intensity, and senescence. The chlorophyll cycle consists of three reactions: the conversions of chlorophyll a to chlorophyll b by
Distinct light and clock modulation of cytosolic free Ca2+ oscillations and rhythmic CHLOROPHYLL A/B BINDING PROTEIN2 promoter activity in Arabidopsis.
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Plants have circadian oscillations in the concentration of cytosolic free calcium ([Ca(2+)](cyt)). To dissect the circadian Ca(2+)-signaling network, we monitored circadian [Ca(2+)](cyt) oscillations under various light/dark conditions (including different spectra) in Arabidopsis thaliana wild type
Phytochrome-regulated expression of genes encoding light-harvesting chlorophyll a/b-protein in two long hypocotyl mutants and wild type plants of Arabidopsis thaliana.
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The cab genes which encode the light-harvesting chlorophyll a/b-protein (LHCP) are expressed normally with respect to phytochrome regulation in the hy-3 and hy-5 long hypocotyl mutants of Arabidopsis thaliana. In etiolated seedlings of these mutants as well as of the wild type, 1 min of red light
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