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4532. Sodium bisulfite enhances photosynthesis in rice by inducing Rubisco activase gene expression
- Creator:
- Chen, Y., Jin, J.-H., Jiang, Q.-S., Yu, C.-L., Chen, J., Xu, L.-G., and Jiang, D.-A.
- Format:
- print, bez média, and svazek
- Type:
- model:article and TEXT
- Subject:
- fotosyntéza, rýže, photosynthesis, rice, carboxylation efficiency, grain yield, maximum carboxylation rate, photorespiration, RuBP regeneration rate, Oryza sativa, 2, and 581
- Language:
- Multiple languages
- Description:
- To investigate how bisulfite promotes photosynthesis, a pot experiment was conducted with rice (Oryza sativa L.) plants to determine Rubisco activity and content, and Rubisco activase (RCA) gene expression after spraying NaHSO3 on rice leaves. The NaHSO3 treatment promoted significantly net photosynthetic rate (PN), carboxylation efficiency, maximum carboxylation rate, ribulose-1,5-bisphosphate regeneration rate, initial Rubisco activity, and RCA protein and mRNA concentrations. Therefore, the NaHSO3 enhancement of PN could be directly attributed to induction of RCA gene expression both at the transcription and translation levels. Thus, the increased RCA regulated the initial Rubisco activity in vivo., Y. Chen, J.-H. Jin, Q.-S. Jiang, C.-L. Yu, J. Chen, L.-G Xu, D.-A. Jiang., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
4533. Soil Cu contamination destroys the photosynthetic systems and hampers the growth of green vegetables
- Creator:
- Lin, M.-Z. and Jin, M.-F.
- Format:
- print, bez média, and svazek
- Type:
- model:article and TEXT
- Subject:
- fotosyntéza, photosynthesis, fluorescence kinetics, green vegetable, metal contamination, soil Cu contamination, 2, and 581
- Language:
- Multiple languages
- Description:
- Soil metal contamination leads to a decrease in a yield of crops and is a threat to human health. In the present study, the properties (i.e., photosynthetic pigments, gas-exchange parameters, chlorophyll fluorescence, biomass, leaf area, leaf mass per area) of three green vegetables (i.e., Brassica chinensis, Chrysanthemum coronarium, Brassica alboglabra) grown under various Cu treatments [0, 200, 400, and 600 mg(Cu) kg-1] were measured and analysed. The results showed that soil Cu contamination resulted in the damage of photosynthetic pigments, negative effects on gas exchange, and hampered growth of all three vegetables. However, it did not significantly influence PSII functions of the three vegetables. It indicates that soil Cu contamination negatively affected photosynthesis particularly due to stomatal factors, but not due to the damage of photosynthetic apparatus., M.-Z. Lin, M.-F. Jin., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
4534. Soil water content and photosynthetic capacity of spring wheat as affected by soil application of nitrogen-enriched biochar in a semiarid environment
- Creator:
- Yeboah, S., Zhang, R., Cai, L., Li, L., Xie, J., Luo, Z., Wu, J., and Antille, D. L.
- Format:
- print, bez média, and svazek
- Type:
- model:article and TEXT
- Subject:
- chemická hnojiva, produktivita plodin, zbytky plodin, výměna plynu, biochar, chemical fertilizers, crop productivity, crop residues, gas exchange, 2, and 581
- Language:
- Multiple languages
- Description:
- A field trial was conducted to determine the effect of nitrogen-enriched biochar on soil water content, plant’s photosynthetic parameters, and grain yield of spring wheat at the Dingxi Experimental Station during the 2014 and 2015 cropping seasons. Results showed that biochar applied with nitrogen fertilizer at a rate of 50 kg ha-1 of N (BN50) increased soil water content in the 0-30 cm depth range by approximately 40, 32, and 53% on average at anthesis, milking, and maturity, respectively, compared with zero-amendment (CN0). Stomatal conductance and net photosynthetic rate after the BN50 treatment increased by approximately 40 to 50% compared to CN0. Soil water content and photosynthetic traits also increased in other treatments using straw plus nitrogen fertilizer, but to lesser extent than that of BN50. Grain yields were highest (1905 and 2133 kg ha-1 in 2014 and 2015, respectively) under BN50. From this, biochar appears to have a potential for its use with N-fertilizer as a cost-effective amendment for crop production in semiarid environments., S. Yeboah, R. Zhang, L. Cai, L. Li, J. Xie, Z. Luo, J. Wu, D. L. Antille., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
4535. Solute patterns and diurnal variation of photosynthesis and chlorophyll fluorescence in Korean coastal sand dune plants
- Creator:
- Hwang, J.-S. and Choo, Y.-S.
- Format:
- print, bez média, and svazek
- Type:
- model:article and TEXT
- Subject:
- Korea, fyziologická adaptace, výměna plynu, fluorescence chlorofylu, nonstomatal limitation, osmotic adjustment, physiological adaptation, stomatal limitation, gas exchange, chlorophyll fluorescence, 2, and 581
- Language:
- Multiple languages
- Description:
- Four plant species, Elymus mollis Trin., Carex kobomugi Ohwi, Glehnia littoralis F. Schmidt ex Miq., and Vitex rotundifolia L.f., are dominant perennial species in coastal sand dunes of Korea. We examined a physiological adaptation of these species by measurements of diurnal variation in photosynthesis and chlorophyll (Chl) fluorescence and solute patterns in leaves during one season (June), which is favorable for plant growth of all four species. All four species adopted different strategies in order to utilize radiation and to maintain water status under a fluctuating microclimate. Although the lowest water contents among four plant species was found, E. mollis with a high Chl and K+ content showed better photosynthetic performance, with high stomatal conductance (gs), net photosynthetic rate (PN), instantaneous carboxylation efficiency (CE), and water-use efficiency. Midday depression of PN in E. mollis and G. littoralis, without a reduction of gs, was associated with a reduction in CE and maximum photochemical efficiency of PSII, indicating nonstomatal limitation. Photosynthesis depression in both C. kobomugi and V. rotundifolia, with relatively low gs values, could be attributed to both stomatal and nonstomatal limitations. The high storage capacity for inorganic ions in E. molli, C. kobomugi, and G. littoralis may play an efficient role in regulating photosynthesis and maintaining leaf water status through stomatal control, and can also play an important role in osmotic adjustment., J.-S. Hwang, Y.-S. Choo., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
4536. Soupis rukopisů knihovny piaristické koleje v Mikulově uložených v Moravské zemské knihovně
- Creator:
- Dokoupil, Vladislav and Bar, Přemysl
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- inventory of manuscripts, modern age manuscripts Piarists, Piarist libraries, Mikulov, and codicology
- Language:
- Multiple languages
- Description:
- This study focuses on the manuscripts of the library of the Piarist College in Mikulov which is kept at the Moravian Provincial Library in Brno as a closed holding. The inventory is based on an old manuscript inventory compiled by Vladislav Dokoupil (1918–1992) which, however, has been adapted, completed, and extended substantially by a historical commentary. In the commentary the author tries to determine the origin of the manuscript collection by analysing preserved manuscripts and other archival material of Piarist provenance.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
4537. Soupis rukopisů knihovny piaristické koleje v Mikulově uložených v Moravské zemské knihovně
- Creator:
- Dokoupil, Vladislav and Bar, Přemysl
- Format:
- electronic
- Type:
- model:article and TEXT
- Subject:
- Inventory of manuscripts, modern age manuscripts Piarists, Piarist libraries, Mikulov, codicology, and Z665
- Language:
- Multiple languages
- Description:
- This study focuses on the manuscripts of the library of the Piarist College in Mikulov which is kept at the Moravian Provincial Library in Brno as a closed holding. The inventory is based on an old manuscript inventory compiled by Vladislav Dokoupil (1918–1992) which, however, has been adapted, completed, and extended substantially by a historical commentary. In the commentary the author tries to determine the origin of the manuscript collection by analysing preserved manuscripts and other archival material of Piarist provenance.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
4538. Soupis rukopisů knihovny piaristické koleje v Mikulově uložených v Moravské zemské knihovně
- Creator:
- Dokoupil, Vladislav and Bar, Přemysl
- Format:
- electronic
- Type:
- model:article and TEXT
- Subject:
- Inventory of manuscripts, modern age manuscripts Piarists, Piarist libraries, Mikulov, codicology, and Z665
- Language:
- Multiple languages
- Description:
- This study focuses on the manuscripts of the library of the Piarist College in Mikulov which is kept at the Moravian Provincial Library in Brno as a closed holding. The inventory is based on an old manuscript inventory compiled by Vladislav Dokoupil (1918–1992) which, however, has been adapted, completed, and extended substantially by a historical commentary. In the commentary the author tries to determine the origin of the manuscript collection by analysing preserved manuscripts and other archival material of Piarist provenance.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
4539. Soupis rukopisů Rožmberské knihy (1. část)
- Creator:
- Fiedlerová, Naďa
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- Rosenberg Book, manuscript catalogues, middle ages, land law, and municipal law
- Language:
- Multiple languages
- Description:
- The Rosenberg Book, a unique source of the Bohemian land law written in the 14th century, lacked until now a full and comprehensive catalogue of all the extant manuscript copies. As the paper contains a physical and codicological description of 10 the known 40 manuscripts of the Rosenberg Book, it presents to the readers the first part of the catalogue. In the introduction to the paper the catalogue is supplemented with basic information about the existing records of the Rosenberg Book manuscripts, brief characteristics of its manuscript tradition, an the guidelines for the manuscript description itself.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
4540. Source-sink manipulation effects on postanthesis photosynthesis and grain setting on spike in winter wheat
- Creator:
- Wang, Zhenlin, Yin, Yanping, He, Mingrong, and Cao, Hongming
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- dry matter accumulation, intercellular CO2 concentration, leaf removal, senescence, spikelet, stomatal conductance, and Triticum aestivum L.
- Language:
- Multiple languages
- Description:
- Source-sink manipulation could regulate the net photosynthetic rate (PN) of winter wheat after anthesis, however, the direction and magnitude of the regulation varied with time after anthesis. The PN was significantly increased by source reduction at the initial time of grain filling, but sink reduction had little influence on the PN, which suggested that the sink (spike) limitation did not occur at this time. Source-sink relation markedly affected PN during rapid grain filling. The PN was increased by source reduction and decreased by sink reduction significantly, which indicated that PN was closely associated with the change of source or sink size. The effect of source-sink manipulation on PN had some relationship with the occurrence of plant senescence at the time of late grain filling. Source reduction accelerated the senescence and dropped the PN, meanwhile, sink reduction delayed the senescence and promoted the PN. A direct relation between the effect of source-sink manipulation on PN and stomatal limitation was not found. Removing one quarter of leaves (RQ) had little influence on spike development after anthesis. In this case there was enough compensation in source production through photosynthesis. Removing one half of leaves (RH) made grain mass per spike and mass of grains lowered, especially the grain mass in the top and base positions of spike declined markedly. The source supply was grain-limiting. Removing one quarter of spikelets (RS) was beneficial to grain-setting in the remaining spikelets, leading to the increase of grain mass. Thus promoting the source supply of photosynthates after anthesis is of major importance for grain to set and to develop. and Zhenlin Wang ... [et al.].
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public