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1. High temperature induced alterations in energy transfer in phycobilisomes of the cyanobacterium Spirulina platensis

Creator:
Murthy, S. D. S., Ramanaiah, V. V., and Sudhir, P.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
absorption spectra and fluorescence emisson spectra at room and low temperature
Language:
Multiple languages
Description:
Exposure of intact cells of Spirulina to high temperature (HT) stress (40-60 °C) caused decrease in absorption spectrum and fluorescence emission spectrum. Low temperature emission spectra were altered at phycocyanin (PC) level. Room and low temperature emission spectra of intact phycobilisomes showed that PC was the main target in this cyanobacterium for the altered energy transfer under HT. and S .D. S. Murthy, V. V. Ramanaiah, P. Sudhir.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2. Low concentration of bisulfite enhances photosynthesis in tea tree by promoting carboxylation efficiency in leaves

Creator:
Yang, W.-J., Chen, H.-F., Zhu, F.-Y., Hu, M.-Q., and Jiang, D.-A.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
chlorophyll fluorescence, intercellular CO2 concentration, Melaleuca, photorespiration, photosystem 2, regeneration of ribulose-1,5-bisphosphate, and stomatal conductance
Language:
Multiple languages
Description:
Tea tree (Melaleuca alternifolia) canopy was sprayed with low concentration of NaHSO3 or mixture of NaHSO3+ KH2PO4. The treatments significantly enhanced net photosynthetic rate (PN), carboxylation efficiency (CE), and the maximum response of PN to intercellular CO2 concentration. The enhancement of PN by foliar application of low concentrations of bisulfite was due to increasing CE relevant to ribulose-1,5-bisphosphate (RuBP) carboxylase/oxygenase activity and regeneration rate of RuBP depending on ATP formation. and W.-J. Yang ... [et al.].
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public