An experiment was conducted to assess the relationship between poly-β-hydroxybutyrate (PHB) biosynthesis and tricarboxylic acid (TCA) activity in desi and kabuli chickpea (Cicer arietinum L.) genotypes. The specific activities of enzymes of PHB metabolism viz., β-ketothiolase (PHB-A), acetoacetyl coenzyme A reductase (PHB-B) and PHB synthase (PHB-C), and those of tricarboxylic acid cycle (citrate synthase (CS) and malate dehydrogenase (MDH) under symbiosis were measured in bacteroids and compared with the PHB accumulation in the nodule and the root. The significant positive correlation was observed between shoot and nodule mass and PHB-A, PHB-B, and PHB-C activities. However, nodule and shoot weights were not significantly correlated with PHB content either in the roots or nodules. The same was true for PHB levels and citrate synthase activity. MDH activity showed a significant negative correlation with nodule PHB. A marked variation and an age dependant increase in malate dehydrogenase activity were measured. A higher capacity for malate oxidation by an increased MDH is likely alter the balance between malate decarboxylation and oxidation, resulting in a higher steady-state concentration of oxaloacetate and that may favor the utilization of acetyl-CoA in the TCA cycle rather than for the synthesis of PHB.
Russian Journal of Plant Physiology – Springer Journals
Published: Aug 20, 2017
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera