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Govindjee G, Peterson LF, Satoh K, Herbert S, de Kouchkovsky Y, Schreiber U, Murata N, Öquist G, Larkum AWD, Hiyama T, Berry JA. David (Dave) Charles Fork (1929-2020): a gentle human being, a great experimenter, and a passionate researcher. PHOTOSYNTHESIS RESEARCH 2023; 155:107-125. [PMID: 36302911 DOI: 10.1007/s11120-022-00964-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
We provide here an overview of the remarkable life and outstanding research of David (Dave) Charles Fork (March 4, 1929-December 13, 2021) in oxygenic photosynthesis. In the words of the late Jack Edgar Myers, he was a top 'photosynthetiker'. His research dealt with novel findings on light absorption, excitation energy distribution, and redistribution among the two photosystems, electron transfer, and their relation to dynamic membrane change as affected by environmental changes, especially temperature. David was an attentive listener and a creative designer of experiments and instruments, and he was also great fun to work with. He is remembered here by his family, coworkers, and friends from around the world including Australia, France, Germany, Japan, Sweden, Israel, and USA.
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Affiliation(s)
- Govindjee Govindjee
- Department of Plant Biology, Department of Biochemistry, and Center of Biophysics & Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
| | | | - Kazuhiko Satoh
- Department of Life Science, University of Hyogo, 3-2-1 Kohto, Kamigohri, Akogun, Hyogo, 678-1297, Japan
| | | | - Yaroslav de Kouchkovsky
- Centre National de la Recherche Scientifique (CNRS), 7 Rue A. Pécard, 91190, Gif-sur-Yvette, France
| | - Ulrich Schreiber
- Julius-von-Sachs Institut für Biowissenschaften, Würzburg University, Julius-von-Sachs Platz 2, 97082, Würzburg, Germany
| | - Norio Murata
- National Institute for Basic Biology, Okazaki, 444-8585, Japan
| | - Gunnar Öquist
- Department of Plant Physiology, Umeå Plant Science Centre, Umeå University, 90 187, Umeå, Sweden
| | - Anthony W D Larkum
- Department of Plant Sciences, University of Sydney, Sydney, NSW, 2050, Australia
| | - Tetsuo Hiyama
- Department of Biochemistry and Molecular Biology, Saitama University, Saitama, 338-8570, Japan
| | - Joseph A Berry
- Carnegie Institution for Science, 260 Panama Street, Stanford, CA, 94305, USA.
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Tiwari S, Tripathy BC, Jajoo A, Das AB, Murata N, Sane PV. Prasanna K. Mohanty (1934-2013): a great photosynthetiker and a wonderful human being who touched the hearts of many. PHOTOSYNTHESIS RESEARCH 2014; 122:235-260. [PMID: 25193504 DOI: 10.1007/s11120-014-0033-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Accepted: 08/15/2014] [Indexed: 06/03/2023]
Abstract
Prasanna K. Mohanty, a great scientist, a great teacher and above all a great human being, left us more than a year ago (on March 9, 2013). He was a pioneer in the field of photosynthesis research; his contributions are many and wide-ranging. In the words of Jack Myers, he would be a "photosynthetiker" par excellence. He remained deeply engaged with research almost to the end of his life; we believe that generations of researchers still to come will benefit from his thorough and enormous work. We present here his life and some of his contributions to the field of Photosynthesis Research. The response to this tribute was overwhelming and we have included most of the tributes, which we received from all over the world. Prasanna Mohanty was a pioneer in the field of "Light Regulation of Photosynthesis", a loving and dedicated teacher-unpretentious, idealistic, and an honest human being.
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Affiliation(s)
- Swati Tiwari
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067, India,
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Changes in the photosynthetic apparatus of red algae induced by spectral alteration of the light field. II. Further characterization of the light-dependent regulation of the apparent quantum yield of PS I. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 1990. [DOI: 10.1016/0005-2728(90)90015-v] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Grover A, Sabat SC, Mohanty P. Relative sensitivity of various spectral forms of photosynthetic pigments to leaf senescence in wheat (Triticum aestivum L.). PHOTOSYNTHESIS RESEARCH 1986; 10:223-231. [PMID: 24435369 DOI: 10.1007/bf00118287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The change in the characteristics of the absorption spectrum of chloroplasts which were isolated from the mature and senescing primary wheat leaves, was examined at various wavelengths in which the photosynthetic pigments mostly absorb. Chlorophyll (Chl) a was observed to be relatively more sensitive to leaf senescence than Chl b and carotenoids. Furthermore, the various spectral in vivo forms of Chl a, did not degrade to a similar extent; the far red absorbing forms of Chl a including species that absorb maximally at 692 nm (Chl a-692), 700 nm (Chl a-700) and 708 nm (Chl a 708) were found to be extremely sensitive to senescence induced losses. Both attached and detached senscing primary wheat leaves exhibited nearly similar pattern in the loss of photosynthetic pigments which suggests that the loss in long wavelength absorbing forms of Chl a is a selective indicator of leaf senescence.
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Affiliation(s)
- A Grover
- Bioenergetics Laboratory, School of Life Sciences, Jawaharlal Nehru University, 110067, New Delhi, India
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