The source of energy for life is the tissue mitochondria and they demand a complex chain of biochemicals to ensure proper physiological function.Classically,the blood levels,and not the tissue levels of these metaboli...The source of energy for life is the tissue mitochondria and they demand a complex chain of biochemicals to ensure proper physiological function.Classically,the blood levels,and not the tissue levels of these metabolites,are determined by expensive and time-consuming biochemical analyses.Since the tissue mitochondria are the consumers of the substrates of glycolysis and of fatty acid metabolism,their redox state is a unique accessible monitor of tissue metabolism and its blockade due to toxins.展开更多
A simple instrument for the real-time measurement of algae concentration and mapping is described. The instrument uses a pulsed short arc xenon flashlamp as the excited light sources. Both the exciting light and the f...A simple instrument for the real-time measurement of algae concentration and mapping is described. The instrument uses a pulsed short arc xenon flashlamp as the excited light sources. Both the exciting light and the fluorescence from algae chlorophyll are transmitted along a fiber bundle. The measurement sensitivity is analyzed and the experiment result is given. The instrument is practical to in-situ measurement at sea.展开更多
介绍了利用便携式调制荧光仪PAM-2100在线监测叶绿素荧光的技术。该技术不影响植物的自然光合状态, 可以在线监测Ft、Fm'、Y、rETR、qP、qN或NPQ、PAR和叶温等指标。以凤眼莲为例进行了在线监测,每隔5 min 监测一次,共进行了225 mi...介绍了利用便携式调制荧光仪PAM-2100在线监测叶绿素荧光的技术。该技术不影响植物的自然光合状态, 可以在线监测Ft、Fm'、Y、rETR、qP、qN或NPQ、PAR和叶温等指标。以凤眼莲为例进行了在线监测,每隔5 min 监测一次,共进行了225 min的监测。结果表明叶绿素荧光参数的变化依赖于PAR的变化。Ft、rETR、qN和NPQ的变化与PAR的变化趋势一致,Fm'、Y和qP的变化与PAR的变化相反。通过对凤眼莲的在线监测,说明该技术是可靠的,具有简单、快速、灵敏等特点。随着新型调制荧光仪的出现,该技术可能在植物生态学领域得到广泛应用。展开更多
文摘The source of energy for life is the tissue mitochondria and they demand a complex chain of biochemicals to ensure proper physiological function.Classically,the blood levels,and not the tissue levels of these metabolites,are determined by expensive and time-consuming biochemical analyses.Since the tissue mitochondria are the consumers of the substrates of glycolysis and of fatty acid metabolism,their redox state is a unique accessible monitor of tissue metabolism and its blockade due to toxins.
文摘A simple instrument for the real-time measurement of algae concentration and mapping is described. The instrument uses a pulsed short arc xenon flashlamp as the excited light sources. Both the exciting light and the fluorescence from algae chlorophyll are transmitted along a fiber bundle. The measurement sensitivity is analyzed and the experiment result is given. The instrument is practical to in-situ measurement at sea.
文摘介绍了利用便携式调制荧光仪PAM-2100在线监测叶绿素荧光的技术。该技术不影响植物的自然光合状态, 可以在线监测Ft、Fm'、Y、rETR、qP、qN或NPQ、PAR和叶温等指标。以凤眼莲为例进行了在线监测,每隔5 min 监测一次,共进行了225 min的监测。结果表明叶绿素荧光参数的变化依赖于PAR的变化。Ft、rETR、qN和NPQ的变化与PAR的变化趋势一致,Fm'、Y和qP的变化与PAR的变化相反。通过对凤眼莲的在线监测,说明该技术是可靠的,具有简单、快速、灵敏等特点。随着新型调制荧光仪的出现,该技术可能在植物生态学领域得到广泛应用。