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Biosynthesis of chlorophyll b and the chlorophyll cycle

These studies provided the first detailed understanding of genes involved in bacteriochlorophyll a biosynthesis.

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Chlorophyll Biosynthesis Gene Evolution ..

Metabolism1.0 Global and overview maps1.1 Carbohydrate metabolism1.2 Energy metabolism1.3 Lipid metabolism1.4 Nucleotide metabolism1.5 Amino acid metabolism1.6 Metabolism of other amino acids1.7 Glycan biosynthesis and metabolism1.8 Metabolism of cofactors and vitamins1.9 Metabolism of terpenoids and polyketides1.10 Biosynthesis of other secondary metabolites1.11 Xenobiotics biodegradation and metabolism1.12 Chemical structure transformation maps

Heme and Chlorophyll Biosynthesis - QMUL

Intracellular communications in plant cells of large dimensions rely primarily on cytoplasmic streaming, because diffusion is too slow for the transport on mm-scale distances. Illumination of a small cell spot at various distances from the point of chlorophyll fluorescence measurements revealed the wave-like propagation of the fluorescence response along the cell length. The results show that the photosynthetic function of immobile chloroplasts under constant light can be affected by long-distance transmission of a photosynthetically active metabolite from the remote cell parts.

Heme and Chlorophyll Biosynthesis

Interspecific differences in photosynthetic attributes of Chardonnay and Merlot grapevines have been established. The cause of such differences were attributed to a higher carboxylation and regeneration capacity in the Merlot leaves, especially at high temperatures and cultivar differences were exacerbated as the season progressed. Differences in biochemical processes related to assimilation at high temperatures were measured between the cultivars, and these may relate to inherent differences in temperature tolerance between these closely related cultivars.

Chlorophyll is the major regulator of photosynthetic antennae in land plants. Its absence diminishes light harvesting, photoprotection and ultimately photosynthesis. We show that barley mutants lacking chl display impaired stomatal control, which can be restored by temporal shading of the plants. Thus the effects of this mutation extend beyond chloroplast metabolism.

Knowledge of carotenoid biosynthesis and ..

Fine tuning the flow of chlorophyll biosynthesis pathway is crucial for the growth and development of the plants. Antioxidant systems were found to influence this pathway through maintaining the specific concentration of H2O2. This finding provides insights into understanding the antioxidant-mediated regulation of chlorophyll biosynthesis in detail, and will help in the development of oxidative stress-resistant plants.

Leaf carbon isotope composition (δ13C) has been used to screen for water-use efficiency in C3 plants, but gaps in the understanding of factors influencing δ13C have limited its application in C4 species. This study exploited maize genetic diversity to explore biochemical and post-photosynthetic factors that may influence δ13C. Our findings indicate that the observed variation in leaf carbon isotope composition across diverse maize lines is likely driven by differences in stomatal and mesophyll conductance and not photosynthetic or respiratory metabolism.

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    Biosynthesis of chlorophyll b

  • Difference Between Chlorophyll A and B | Difference …

    Chlorophyll Biosynthesis and Technological Applications by Constantin A

  • Effects of Acetylsalicylic Acid on Germination, Growth …

    The creation of an organic compound in a living organism is referred to as biosynthesis

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Magnesium: The Lamp of Life - Chlorophyll, DNA, …

Prolonged endoplasmic reticulum (ER) stress oxidises the cellular glutathione pool. To elucidate the role of glutathione during ER stress, biosynthesis and degradation of glutathione and activities of related enzymes were evaluated. Our data demonstrated that glutathione biosynthesis and an apoplastic but not cytoplasmic catabolic pathway was induced. In addition, the activities of enzymes that use glutathione as a substrate were increased by ER stress.

Inside chlorophyll is the lamp of life and that lamp is magnesiumd

We studied the dynamics of photochemical activity in seed coats and cotyledons during development of yellow- and green-seeded pea cultivars by using the pulse amplitude modulation fluorometric analysis. The fast transients of the chlorophyll fluorescence revealed higher photochemical activity in the coats of yellow-seeded cultivar at the early- and middle cotyledon stages of seed development in comparison to those observed in the green-seeded ones. Photochemical activity in the cotyledons of both cultivars could not be any more detected at the late cotyledon stage. This process was triggered by dehydration of seed tissues.

The capture of light energy from the sun is magnesium dependent

Cytokinin is an important plant hormone and its mode of action has been extensively studied; however, to date, the subcellular localisation of cytokinin perception and signal transduction remains a matter of debate. This study describes cytokinin receptor–phosphotransmitter interaction and its subcellular localisation in living plant cells and it provides several experimental evidences for receptor activity at the endoplasmic reticulum (ER) membrane. It is concluded that intracellular cytokinins within the ER lumen may play an important role in cytokinin signalling, at least in some cell types.

Diversity of Microbial Metabolism

This review is centered on a discussion of our current understanding of bacterial, algal, and plant genes that code for enzymes in the Mg-branch of the tetrapyrrole biosynthetic pathway that are responsible for synthesis of chlorophylls and bacteriochlorophylls.">

Ethylene and fruit ripening: from illumination gas to …

This review is centered on a discussion of our current understanding of bacterial, algal, and plant genes that code for enzymes in the Mg-branch of the tetrapyrrole biosynthetic pathway that are responsible for synthesis of chlorophylls and bacteriochlorophylls.

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