The Respiratory Chain Components of Higher Plant Mitochondria
نویسندگان
چکیده
منابع مشابه
The respiratory chain components of higher plant mitochondria.
TIGHTLY COUPLED MITOCHONDRIA HAVE BEEN PREPARED FROM A VARIETY OF PLANT SOURCES: white potato (Solanum tuberosum), Jerusalem artichoke (Heliantus tuberosus), cauliflower buds (Brassica oleracea), and mung bean hypocotyls (Phaseolus aureus). Mitochondria with no appreciable coupling were also prepared from skunk cabbage spadices (Symplocarpus foetidus).Room temperature difference spectra show th...
متن کاملThe Respiratory Chain of Plant Mitochondria: VI. Flavoprotein Components of the Respiratory Chain of Mung Bean Mitochondria.
Redox changes of the flavoproteins of mung bean (Phaseolus aureus) mitochondria were measured by differential absorbance at 468 to 493 nanometers and by fluorescence emission above 500 nanometers excited at 436 nanometers. Four flavoproteins are distinguishable by the ratio of their fluorescence to absorbance changes, and by their requirement, or lack of it, for energy-linked reverse electron t...
متن کاملProperties of Higher Plant Mitochondria. III. Effects of Respiratory Inhibitors.
The effects of representative respiratory inhibitors were investigated on the coupled respiration of mung bean mitochondria using succinate and l-malate as substrates. The inhibitors studied were: (I) malonate, (II) amytal and rotenone, (III) antimycin A and 2-n-nonyl-4-hydroxyquinoline N-oxide (NOQNO), and (IV) cyanide and azide.Malonate inhibition of succinate oxidation follows a classical ty...
متن کاملHigher plant mitochondria
Over the past 20 years, researchers investigating the mitochondria of plants have been astonished by the phenomenal variation these organelles display relative to their mammalian and fungal counterparts. Plant mitochondria have evolved distinct strategies for genome maintenance, genetic decoding, gene regulation, and organelle segregation. Their physiological and biochemical functions have simi...
متن کاملThe respiratory chain of plant mitochondria. II. Oxidative phosphorylation in skunk cabbage mitochondria.
Mitochondria were prepared from the spadices of skunk cabbage (Symplocarpus foetidus) whose respiratory rate with succinate and malate showed 15% to 30% sensitivity to cyanide inhibition, and which showed respiratory control by added ADP. The observed respiratory control ratios ranged from 1.1 to 1.4. The change in pH of the mitochondrial suspension was recorded simultaneously with oxygen uptak...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Plant Physiology
سال: 1968
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.43.5.756