CELLULAR DIFFERENTIATION AND NITROGENASE ACTIVITY IN THE CYANOBACTERIUM ANABAENAAHLUWALIA AS; KUMAR HD.1982; BIOL. PLANT.; ISSN 0006-3134; CSK; DA. 1982; VOL. 24; NO 2; PP. 136-141; BIBL. 14 REF.Article

INTERGENERIC TRANSFER OF STREPTOMYCIN RESISTANCE MARKER BETWEEN TWO BLUE GREEN ALGAEKUMAR HD; TYAGI MB.1978; PROC. INDIAN ACAD. SCI., B; IND; DA. 1978; VOL. 87; NO 10; PP. 225-230; BIBL. 13 REF.Article

RESPONSE OF A WILD-TYPE AND A NON-NITROGEN-FIXING MUTANT OF NOSTOC LINCKIA TO DIFFERENT CARBON SOURCES.LADHA JK; KUMAR HD.1977; NEW PHYTOLOGIST; G.B.; DA. 1977; VOL. 79; NO 2; PP. 299-308; BIBL. 17 REF.Article

EFFECTS OF ACRIDINE DYES AND OTHER SUBSTANCES ON GROWTH, LYSIS AND TOXICITY OF ANABAENA FLOS-AQUAE NRC-44-1 = EFFET DES COLORANTS A L'ACRIDINE ET D'AUTRES PRODUITS SUR LA CROISSANCE, LA LYSE ET LA TOXICITE D'A. F.-A. NCR-44-1KUMAR HD; GORHAM PR.1975; BIOCHEM. PHYSIOL. PFLANZ.; DTSCH.; DA. 1975; VOL. 167; NO 6; PP. 473-487; BIBL. 14 REF.Article

ACTION OF MUTAGENIC CHEMICALS ON BLUE-GREEN ALGAEGUPTA RS; KUMAR HD.1973; BIOCHEM. PHYSIOL. PFLANZ.; DTSCH.; DA. 1973; VOL. 164; NO 1; PP. 14-21; BIBL. 12REF.Serial Issue

RESPONSE OF A WILD TYPE AND A NON-NITROGEN FIXING MUTANT OF ANABAENA DOLIOLUM TOWARDS DIFFERENT AMINO ACIDSASHOK KUMAR; KUMAR HD.1981; Z. ALLG. MIKROBIOL.; ISSN 0044-2208; DDR; DA. 1981; VOL. 21; NO 5; PP. 353-359; BIBL. 21 REF.Article

EFFECTS OF SOME AMINO ACID ANALOGUES ON GROWTH AND HETEROCYST FORMATION IN THE BLUE-GREEN ALGA NOSTOC LINCKIA.LADHA JK; KUMAR HD.1978; PROC. INDIAN ACAD. SCI., B; IND; DA. 1978; VOL. 87; NO 4; PP. 127-133; BIBL. 16 REF.Article

PRODUCTION OF NUTRITIONALLY-DEFICIENT MUTANTS OF THE AXENIC BLUE-GREEN ALGA ANABAENA FLOS-AQUAE NRC-44-1 BY ULTRAVIOLET IRRADIATION.KUMAR HD; GORHAM PR.1975; Z. ALLG. MIKROBIOL.; DTSCH.; DA. 1975; VOL. 15; NO 5; PP. 379-381; BIBL. 3 REF.Article

DIFFERENTIAL EFFECTS OF AMINO ACID ANALOGS ON GROWTH AND HETEROCYST DIFFERENTIATION IN TWO NITROGEN-FIXING BLUE-GREEN ALGAEKUMAR A; KUMAR HD.1980; CURR. MICROBIOL.; DEU; DA. 1980; VOL. 3; NO 4; PP. 213-218; BIBL. 25 REF.Article

EFFECTS OF CYCLIC NUCLEOTIDES ON MORPHOGENESIS IN NOSTOC MUSCORUMKUMAR HD; MANJU GUPTA.1978; ARCH. MICROBIOL.; DEU; DA. 1978; VOL. 119; NO 2; PP. 183-186; BIBL. 12 REF.Article

PHYSICO-CHEMICAL AND PHYCOLOGICAL ASSESSMENT OF TWO MERCURY-POLLUTED EFFLUENTSMANJUAGRAWAL; KUMAR HD.1978; INDIAN J. ENVIRONMENT. HEALTH; IND; DA. 1978; VOL. 20; NO 2; PP. 141-155; BIBL. 10 REF.Article

ZIRCONIUM-INDUCED PRECIPITATION OF PHOSPHATE AS A MEANS OF CONTROLLING ENTROPHICATION.KUMAR HD; RAI LC.1978; AQUAT. BOT.; NLD; DA. 1978; VOL. 4; NO 4; PP. 359-366; BIBL. 4 REF.Article

VARIABILITY OF NITROGEN FIXATION IN SOME ISOLATES OF NOSTOC LINCKIA.LADHA JK; KUMAR HD.1977; Z. ALLG. MIKROBIOL.; DTSCH.; DA. 1977; VOL. 17; NO 8; PP. 593-598; BIBL. 8 REF.Article

SYSTEMATIC AND ECOLOGICAL STUDIES ON ALGAE OF SOME HABITATS POLLUTED WITH FERTILIZER FACTORY EFFLUENT.RAI LC; KUMAR HD.1976; NOVA HEDWIGIA; ALLEM.; DA. 1976; VOL. 27; NO 3-4; PP. 805-811; BIBL. 18 REF.Article

DEVELOPMENTAL STAGES IN A NONHETEROCYSTOUS FILAMENTOUS CYANOPHYTE = STADES DE DEVELOPPEMENT D'UNE CYANOPHYCEE FILAMENTEUSE SANS HETEROCYSTELADHA JK; KUMAR HD.1975; NEW PHYTOLOGIST; G.B.; DA. 1975; VOL. 74; NO 3; PP. 477-483; H.T. 4; BIBL. 25REFArticle

FORWARD AND REVERSE MUTATION IN THE BLUE-GREEN ALGA, ANACYSTIS NIDULANSSINHA BD; KUMAR HD.1972; INDIAN J. EXPER. BIOL.; INDIA; DA. 1972; VOL. 10; NO 5; PP. 397-398; BIBL. 14REF.Serial Issue

SOME CHARACTERISTICS OF TWO MORPHOLOGICAL MUTANTS OF NOSTOC LINKIA INDUCED BY NITROSOGUANIDINE.LADHA JK; KUMAR HD.1977; Z. ALLG. MIKROBIOL.; DTSCH.; DA. 1977; VOL. 17; NO 7; PP. 513-519; BIBL. 15 REF.Article

HETEROCYST DIVISION IN TWO BLUE-GREEN ALGAELADHA JK; KUMAR HD.1975; ARCH. MICROBIOL.; GERM.; DA. 1975; VOL. 102; NO 2; PP. 171-173; BIBL. 9REF.Article

EXPERIMENTAL STUDIES ON THE UPTAKE OF MINERAL NUTRIENTS BY ALGAE ISOLATED FROM POLLUTED HABITATS = ETUDE EXPERIMENTALE DE L'ABSORPTION DE SUBSTANCES MINERALES PAR DES ALGUES PROVENANT D'HABITATS POLLUESKUMAR HD; SHARMA V.1974; BIOCHEM. PHYSIOL. PFLANZ.; DTSCH.; DA. 1974; VOL. 166; NO 3; PP. 221-232; BIBL. 15REF.Article

GROWTH RESPONSE OF FOUR MICRO-ALGAE TO THREE CRUDE OILS AND FURNACE OILGAUR JP; KUMAR HD.1981; ENVIRON. POLLUT., SER. A, ECOL. BIOL.; ISSN 0143-1471; GBR; DA. 1981; VOL. 25; NO 1; PP. 77-85; BIBL. 18 REF.Article

TUNGSTEN-INDUCED INACTIVATION OF MOLYBDOENZYMES IN ANABAENAASHOK KUMAR; KUMAR HD.1980; BIOCHIM. BIOPHYS. ACTA; NLD; DA. 1980; VOL. 613; NO 1; PP. 244-248; BIBL. 12 REF.Article

GENETICS OF BLUE-GREEN ALGAELADHA JK; KUMAR HD.1978; BIOL. REV.; GBR; DA. 1978; VOL. 53; NO 3; PP. 355-386; BIBL. 5 P.Article

COMPARATIVE STUDIES OF GROWTH AND NITROGEN FIXATION IN CERTAIN SUBCLONES OF THE CYANOPHYTE GLOEOCAPSA = ETUDE COMPARATIVE DE LA CROISSANCE ET DE LA FIXATION D'AZOTE CHEZ QUELQUES SOUS-CLONES DE LA CYANOPHYCEE G.KUMAR HD; LADHA JK.1976; BIOCHEM. PHYSIOL. PFLANZ.; FR.; DA. 1976; VOL. 169; NO 1-2; PP. 63-69; ABS. ALLEM.; BIBL. 10 REF.Article

STUDIES ON CHEMICAL AND BIOLOGICAL TREATMENT OF A ZINC SMELTER EFFLUENT AND ITS EVALUATION THROUGH THE GROWTH OF TEST ALGAERANA BC; KUMAR HD.1975; NOVA HEDWIGIA; ALLEM.; DA. 1975; VOL. 26; NO 2-3; PP. 465-471; BIBL. 9 REF.Article

PRE- AND POST-TREATMENT OF ANACYSTIS NIDULANS WITH NALIDIXIC ACID, HYDROXYUREA AND MITOMYCIN C, AND A STUDY OF STRAINS RESISTANT TO THESE INHIBITORS = PRE- ET POST-TRAITEMENT D'A. N. PAR L'ACIDE NALIDIXIQUE, L'HYDROXYUREE ET LA MITOMYCINE C; ETUDE DES LIGNEES RESISTANTES A CES INHIBITEURSVIMLA MADAN; KUMAR HD.1974; BIOCHEM. PHYSIOL. PFLANZ.; DTSCH.; DA. 1974; VOL. 166; NO 3; PP. 207-220; BIBL. 1P.1/2Article