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Start Over Creator Pang, J.

1. Elevated CO2 concentration enhances the role of the ear to the flag leaf in determining grain yield of wheat

Creator:
Zhu, C.-W., Zhu, J.-G., Liu, G., Zeng, Q., Xie, Z.-B., Pang, J., Feng, Z.-Z., Tang, H.-Y., and Wang, L.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
net photosynthetic rate and Triticum aestivum
Language:
Multiple languages
Description:
Net photosynthetic rate (PN) of ear and flag leaf during grain filling stage and grain yield of plants with non-darkened or darkened flag leaf or darkened ear were examined in two different CO2 concentrations: ambient (AC) and AC+200 µmol mol-1 (EC). Ear showed much higher enhancement (56 %) of PN than flag leaf (23 %) under EC. Moreover, CO2 enrichment shortened the photosynthetic duration of flag leaf relative to ear. In this way the ratio of ear to flag leaf contribution to grain yield increased from 1.18 (AC) to 1.39 (EC). and C.-W. Zhu ... [et al.].
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2. NMDA receptor activation induces mitochondrial dysfunction, oxidative stress and apoptosis in cultured neonatal rat cardiomyocytes

Creator:
Gao, X., Xu, X., Pang, J., Zhang, C., Ding, J. M., Peng, X., Liu, Y., and Cao,Ji-Min
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
fyziologie živočichů, vápník, cytochromy, srdce, animal physiology, calcium, cytochromes, heart, kaspáza-3, and caspase-3
Language:
English
Description:
Glutamate is a well-characterized excitatory neurotransmitter in the central nervous system (CNS). Recently, glutamate receptors (GluRs) were also found in peripheral tissues, including the heart. However, the function of GluRs in peripheral organs remains poorly understood. In the present study, we found that N-methyl-D-aspartate (NMDA) could increase intracellular calcium ([Ca2+]i) level in a dose-dependent manner in cultured neonatal rat cardiomyocytes. NMDA at 10-4 M increased the levels of reactive oxygen species (ROS), cytosolic cytochrome c (cyto c), and 17-kDa caspase-3, but depolarized mitochondrial membrane potential, leading to cardiomyocyte apoptosis. In addition, NMDA treatment induced an increase in ba x mRNA but a decrease in bcl-2 mRNA expression in the cardiomyocytes. The above effects of NMDA were bloc ked by the NMDA receptor antagonist (+)-5-methyl- 10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5,10-imine hydrogen maleate (MK-801), and by ROS scavengers glutathione (GSH) and N-acetylcystein (NAC). These results suggest that stimulation of NMDA receptor in the cardiomyocyte may lead to apoptosis via a Ca2+, ROS, and caspase-3 mediated pathway. These findings suggest that NMDA receptor may play an important role in myocardial pathogenesis., X. Gao, X. Xu, J. Pang, C. Zhang, J. M. Ding, X. Peng, Y. Liu, J.-M. Cao., and Obsahuje bibliografii a bibliografické odkazy
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public