17.2.1 Inorganic Carbon in the Cyanobacterial Environment...... 444

نویسنده

  • John A. Raven
چکیده

17.2 Acquisition and Assimilation of Inorganic Carbon in Photolithotrophy ......................................................... 444 17.2.1 Inorganic Carbon in the Cyanobacterial Environment ...... 444 17.2.2 Mechanisms of Inorganic Carbon Acquisition and Assimilation by Cyanobacteria .................................. 447 17.2.3 Regulation of the CCM ..................................................... 448 17.2.4 CO 2 and pH Dependence of Photosynthesis and Growth ........................................................................ 449

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Stable Carbon Isotope Evidence for Atmospheric CO(inf2) Uptake by Cyanobacterial Surface Scums in a Eutrophic Lake.

The carbon isotope composition of photosynthetic organisms reflects the (delta)(sup13)C of their inorganic carbon sources. The large difference between (delta)(sup13)C in cyanobacterial surface scums (-25 to -18(permil)) and subsurface blooms (-34 to -30(permil)) in a subarctic lake indicates direct atmospheric CO(inf2) fixation by the scums.

متن کامل

pH determines the energetic efficiency of the cyanobacterial CO2 concentrating mechanism.

Many carbon-fixing bacteria rely on a CO2 concentrating mechanism (CCM) to elevate the CO2 concentration around the carboxylating enzyme ribulose bisphosphate carboxylase/oxygenase (RuBisCO). The CCM is postulated to simultaneously enhance the rate of carboxylation and minimize oxygenation, a competitive reaction with O2 also catalyzed by RuBisCO. To achieve this effect, the CCM combines two fe...

متن کامل

On-line Pre-Concentration and Separation of Inorganic Arsenic Based on Nano Platinum-Multiwall Carbon Nanotubes

On-line solid phase extraction (SPE) based on  nano adsorbent for pre-concentration of inorganic arsenic in water and waste water samples was developed prior to determine by hydride generation atomic absorption spectrometry (HG-AAS). By hydride generation simulation system (HGSS), the  inorganic arsenic in liquid samples changed to hydride form and pass through nano platinum multi wall carbon n...

متن کامل

Long-term monitoring reveals carbon–nitrogen metabolism key to microcystin production in eutrophic lakes

The environmental drivers contributing to cyanobacterial dominance in aquatic systems have been extensively studied. However, understanding of toxic vs. non-toxic cyanobacterial population dynamics and the mechanisms regulating cyanotoxin production remain elusive, both physiologically and ecologically. One reason is the disconnect between laboratory and field-based studies. Here, we combined 3...

متن کامل

Inactivation of Ca(2+)/H(+) exchanger in Synechocystis sp. strain PCC 6803 promotes cyanobacterial calcification by upregulating CO(2)-concentrating mechanisms.

Cyanobacteria are important players in the global carbon cycle, accounting for approximately 25% of global CO2 fixation. Their CO2-concentrating mechanisms (CCMs) are thought to play a key role in cyanobacterial calcification, but the mechanisms are not completely understood. In Synechocystis sp. strain PCC 6803, a single Ca(2+)/H(+) exchanger (Slr1336) controls the Ca(2+)/H(+) exchange reactio...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2012