Action of Different Light Qualities on Simultaneous Photosynthesis and Nitrate Assimilation in Wheat Leaves

Stoy, Volkmar

doi:10.1111/j.1399-3054.1955.tb07792.x

Cited by 58 publications

(5 citation statements)

References 30 publications

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“…The last-mentioned picture conforms to the ideas on nitrate reduction put forward by Burstroni (1943Burstroni ( , 1945 and corroborated for instance by van Niel et al (1953) and Stoy (1955). It is also pertinent in tbis connection tbat a pbotocbemical nitrate reduction was obtained in vitro by Evans and Nason (1953) by combining grana and a purified preparation of nitrate-reductase, wbicb enzyme is sensitive to beavy-metal inbibitors.…”

Section: Discussionsupporting

confidence: 82%

The Incorporation of Radio‐Sulphar from External Sulphate into Different Sulphur Fractions of Isolated Leaves

Kylin¹

1960

Physiologia Plantarum

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Section: Discussionsupporting

confidence: 82%

The Incorporation of Radio‐Sulphar from External Sulphate into Different Sulphur Fractions of Isolated Leaves

Kylin¹

1960

Physiologia Plantarum

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“…Green light is effectively absorbed by green leaves (Bjorkman 1968, Gabrielsen 1948, Gates et al 1965, Kleshnin and Shulgin 1959, Monteith 1965, Moss and Loomis 1952, Rabideau et al 1946, Seybold and Weisweiler 1943, Shibata et al 1954, Stoy 1955, Strain 1951, and green light efficiently drives electron transport (Ghi- 1984). Action spectra show that green light is an effective spectral region in powering photosynthesis in higher plants, especially in leaves with high Chi content (Bulley et al 1969, Clark and Lister 1975, Inada 1976, Lundegardh 1966, McCree 1972, Pickett and Myers 1966, Yabuki and Ko 1973.…”

Section: Discussionmentioning

confidence: 99%

Green Light Drives CO2 Fixation Deep within Leaves

Sun

Nishio

Vogelmann

1998

Plant and Cell Physiology

246

162

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Maximal l4 CO 2-fixation in spinach occurs in the middle of the palisade mesophyll [Nishio et al. (1993) Plant Cell 5: 953], however, ninety percent of the blue and red light is attenuated in the upper twenty percent of a spinach leaf [Cui et al. (1991) Plant Cell Environ. 14: 493]. In this report, we showed that green light drives 14 C0 2-fixation deep within spinach leaves compared to red and blue light. Blue light caused fixation mainly in the palisade mesophyll of the leaf, whereas red light drove fixation slightly deeper into the leaf than did blue light. I4 C0 2-fixation measured under green light resulted in less fixation in the upper epidermal layer (guard cells) and upper most palisade mesophyll compared to red and blue light, but led to more fixation deeper in the leaf than that caused by either red or blue light. Saturating white, red, or green light resulted in similar maximal 14 CO 2-fixation rates, whereas under the highest irradiance of blue light given, carbon fixation was not saturated, but it asymptotically approached the maximal 14 CO 2-fixation rates attained under the other types of light. The importance of green light in photosynthesis is discussed.

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“…In a colourless mutant of C. kessleri grown in nitrate medium, we found the activation of nitrate reductase by irradiation with blue light in purified enzyme (Kamiya 1988). Beside this, activating influences of blue light on isolated nitrate reductase are known in literature (Stoy 1955, Aparicio et al 1976, Roldan and Butler 1980. Being under the control of nitrate, this enzyme has been not found in cells grown with ammonia (Zeiler and Solomonson 1989).…”

Section: Introductionmentioning

confidence: 99%

Blue‐light‐control of the uptake of amino acids and of ammonia in Chlorella mutants

Kamiya

Saitoh

2002

Physiologia Plantarum

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In non-photosynthetic, yellow or colourless mutant cells of Chlorella kessleri, grown with nitrate as sole nitrogen source, blue light inhibited the uptake of the amino acids glycine, proline and arginine and of ammonia in growing cells, while it enhanced the uptake of these amino acids in resting cells. On the other hand, in cells grown with ammonia as the only nitrogen source without nitrate reductase activity, blue light did not influence the uptake of amino acids and of ammonia in growing cells, while it enhanced the uptake of amino acids in resting cells. Addition of methionine sulphoximine, a potent inhibitor of glutamine synthetase, to growing cells, resulted in intracellular ammonia-accumulation and inhibition of uptake of glycine and of ammonia. For the colourless mutant, blue light was shown to activate purified nitrate reductase. These results indicate that in the mutant cells of Chlorella examined, uptake of ammonia seems to be influenced by nitrate reductase and the uptake of amino acids was influenced by both nitrate reductase and an unknown blue-light-receptor(s). The uptake of urea in mutant cells is not influenced by the irradiation with blue light. Uptake of glycine was also increased after addition of glucose (hexose) in the dark. Because blue light is known to enhance the breakdown of starch, a reaction producing glucose for oxidative degradation in the algae used, the role of glucose (hexose) in the blue light-affected uptake of amino acids is discussed.

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Action of Different Light Qualities on Simultaneous Photosynthesis and Nitrate Assimilation in Wheat Leaves

Cited by 58 publications

References 30 publications

The Incorporation of Radio‐Sulphar from External Sulphate into Different Sulphur Fractions of Isolated Leaves

The Incorporation of Radio‐Sulphar from External Sulphate into Different Sulphur Fractions of Isolated Leaves

Green Light Drives CO2 Fixation Deep within Leaves

Blue‐light‐control of the uptake of amino acids and of ammonia in Chlorella mutants

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