sewage in which CORNELIS BERNARDUS VAN NIEL 393iron ant!

By solvent extraction and re-peated crystallization, they isolated about 100 milligrams ofan apparently homogeneous carotinoid they called "spirillo-xanthin." Its empirical composition was found to be CORNELIS BERNARDUS VAN NIEL 399C48H66O3, and it contained fifteen double bonds, no morethan one hydroxyl group, and no free carboxyl group—mak-ing it the most highly unsaturated carotinoid then known.


Kluyver was not a coauthor of any of van Niel's earlypapers on photosynthetic bacteria.


interpretations, the results ofsome six years of investigation, were first presented at a smallmeeting of the Western Society of Naturalists in Pacific Grove CORNELIS BERNARDUS VAN NIEL 397at the end of 1929.

van Niel; Born: Cornelius Bernardus van Niel ) ..

Van Niel's unified interpre-tation of the photochemical event in photosynthesis is similarin principle to the current interpretation of this process, al-though a special type of chlorophyll (rather than water) isnow considered to be the source of the light-generatec} oxi-dizing and reducing species.

CORNELIS BERNARDUS VAN NIEL 405photosynthetic microorganisms for carbon dioxide ant!

was opposed by Cornelis van Niel ..

Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages. CORNELIS BERNARDUS VAN NIELNovember 4, I 897—March l O.

In photosynthesis: Overall reaction of photosynthesis

Not being able to stay at Harvard, Stacy accepted a position at the California Institute of Technology with Robert Emerson to study photosynthesis of purple bacteria. In preparation for this area Stacy spent the summer of 1934 taking Cornelis B. van Niel’s famous course in microbiology at the Hopkins Marine Station in Pacific Grove, California. Van

Mar 10, 1985 · Work and discoveries Photosynthesis ..

He entered the University in autumn 1916 but, after only CORNELIS BERNARDUS VAN NIEL 391three months, was incluctect into the Dutch army, in whichhe server!

Muller's 1933 publications on theutilization of organic compounds by purple sulfur bacteria;  CORNELIS BERNARDUS VAN NIEL 403i.

"Cornelis Bernardus van Niel, 1897-1985 : a ..

METHANE PRODUCTION ANDCARBON DIOXIDE UTILIZATIONVan Niel's studies of photosynthetic bacteria led him toconsider other processes in which carbon dioxide utilizationmight occur.

Van Niel, Cornelis B.

Niel, Cornelis Bernardus van, 1897-1986

In 1923, Cornelius van Niel married Christina van Hemert, graduated in chemical engineering at and became an assistant to , who had initiated the field of comparative biochemistry. In 1928 he wrote his PhD dissertation ('The Bacteria') after which he left for the United States to continue his work at the of .

Van Niel's influencecan also be seen in Pfennig's work on the nutrition and ecol-ogy of photosynthetic bacteria.

Cornelis Bernardus van Niel (1930s) C

HUNGATECORNELIS BERNARDUS VAN NIEL Kees to his friendsand students—is best known for his discovery of mul-tiple types of bacterial photosynthesis, his decluction that alltypes of photosynthesis involve the same photochemicalmechanism, and his extraordinary ability to transmit his en-thusiasm for the study of microorganisms to his students.