It is well established that protein synthesis by isolated chloroplast ribosomes is inhibited by the same antibiotics which inhibit protein synthesis by prokaryote ribosomes. The best studied example is chloramphenicol, which inhibits protein synthesis by isolated chloroplast from all the species so far tested; inhibition is shown only by the D-threo isomer of chloramphenicol, and not by the other stereo isomers. Protein synthesis by cytoplasmic ribosomes from plants is not inhibited by any of these antibiotics. On the other hand, cytoplasmic ribosomes are inhibited by cycloheximide, which does not affect the activity of chloroplast ribosomes.
ABOUT THE AUTHOR R.K. Singh
Rajesh K. Singh (born in 1961) [M.A. (Hindi, Lit.), M.A. (Eng. Lit.), B.Ed., BLIS, MLIS, M.A. (AIH&C); PGDHTM; Ph.D. (Lib. & Inf. S.)] is presently working as University Librarian at Central Library, dr. Ram Manohar Lohia Avadh University, Faizabad (Ayodhya). He secured his B.L.I.Sc. from Agra University and M.L.I.Sc. from Annamali University. He has worked as a TGT (English) of Kendriya Vidyalaya. BHEL, Hardwar (1986-87. He has worked as a Librarian in Kendriya Vidyalaya, O.C.F. Shahjahanpur (1987-1999) and Institute of Oriental philosophy, Vrindavan, (1990-2001). He has contributed lot of papers and articles. He has participated in number of National and International Seminars/Conferences/Workshops. He is closely associated to summary Library Associations.
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