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  1. No Access

    Chapter and Conference Paper

    Cytokinin Function in Drought Stress Response and Subsequent Recovery

    Plants respond to exogenous stimuli, including abiotic stress, by modulation of their behavior, which is partially mediated by plant hormones. Understanding of the role of different hormones could improve the ...

    M. Novakova, P. Dobrev, V. Motyka… in Biotechnology and Sustainable Agriculture … (2007)

  2. No Access

    Article

    Substrate specificity and domain analyses of zeatin O-glycosyltransferases

    The substrate specificity of two recombinant enzymes, zeatin O-glucosyltransferase 1 (ZOG1) and zeatin O-xylosyltransferase 1 (ZOX1), was further characterised. ZOG1 utilises zeatin (Z), UDPG, and UDPX as subs...

    R.C. Martin, K.A. Cloud, M.C. Mok, D.W.S. Mok in Plant Growth Regulation (2000)

  3. No Access

    Article

    Genes Encoding Zeatin O-Glycosyltransferases

    Zeatin is a highly active and ubiquitous cytokinin. O-Glycosylation of zeatin occurs widely in plant tissues and is likely to be important in regulating the level of active cytokinins. Enzymes mediating the co...

    D. W. S. Mok, R. C. Martin, X. Shan, M. C. Mok in Plant Growth Regulation (2000)

  4. No Access

    Article

    Analyses of Phaseolus vulgaris L. and P. coccineus Lam. hybrids by RFLP: preferential transmission of P. vulgaris alleles

    Restriction fragment length polymorphism (RFLP) was determined among P. vulgaris genotypes and Phaseolus species using 19 probes. The incidence of polymorphism was high (70–86%) between species, but relatively lo...

    M. Guo, D. A. Lightfoot, M. C. Mok, D. W. S. Mok in Theoretical and Applied Genetics (1991)

  5. No Access

    Article

    Somatic embryogenesis and shoot organogenesis from interspecific hybrid embryos of Vigna glabrescens and V. radiata

    Somatic embryogenesis occurred on cotyledons of morphologically abnormal embryos derived from Vigna glabrescens x V. radiata crosses and cultured on Murashige and Skoog (MS) medium without growth regulators. The ...

    H. K. Chen, M. C. Mok, D. W. S. Mok in Plant Cell Reports (1990)

  6. No Access

    Chapter and Conference Paper

    Genetic Differences in the Enzymatic Regulation of Zeatin Metabolism in Phaseolus Embryos

    Hormones play a significant role in all phases of growth and development of higher plants. Although the site(s) of action of hormones are largely unknown, it can be postulated that rather precise regulatory me...

    D. W. S. Mok, M. C. Mok, G. Shaw, S. C. Dixon, R. C. Martin in Plant Growth Substances 1988 (1990)

  7. No Access

    Article

    Interspecific hybridization between Vigna radiata (L.) Wilczek and V. glabrescens

    Interspecific hybrids of the mungbean, Vigna radiata (L.) Wilczek (2n=22) and V. glabrescens (2n=44) were generated with the aid of embryo culture. V. glabrescens x V. radiata hybrids were recovered via germinati...

    H. K. Chen, M. C. Mok, S. Shanmugasundaram… in Theoretical and Applied Genetics (1989)

  8. No Access

    Chapter

    Phaseolus: Wide Hybridization Through Embryo Culture

    Grain legumes are second only to cereals as important plant food sources. The cultivation of grain legumes amounts to over 72 million ha, with a total production of about 51 million metric tons per year (FAO P...

    D. W. S. Mok, M. C. Mok, A. Rabakoarihanta, C. T. Shii in Crops I (1986)

  9. No Access

    Article

    Embryo development in reciprocal crosses of Phaseolus vulgaris L. and P. coccineus Lam.

    Embryo development was examined in reciprocal crosses of Phaseolus vulgaris cv. ‘Great Northern’ and P. coccineus cv. ‘Scarlet Runner’. The formation of abnormal (shrunken and underdeveloped) embryos constituted ...

    C. T. Shii, A. Rabakoarihanta, M. C. Mok, D. W. S. Mok in Theoretical and Applied Genetics (1982)

  10. No Access

    Chapter and Conference Paper

    Genetic Regulation of Cytokinin Metabolism in Phaseolus Tissue Cultures

    The regulatory mechanisms controlling hormonal metabolism play a central role in plant development. For normal development to occur, hormone levels appropriate to each tissue at each stage of development must ...

    D. J. Armstrong, S.-G. Kim, M. C. Mok… in Metabolism and Molecular Activities of Cyt… (1981)

  11. No Access

    Article

    Meiosis and fertility of interspecific hybrids betweenPhaseolus vulgaris L. andP. acutifolius A. Gray

    Meiosis and fertility of interspecific hybrids obtained from reciprocal crosses betweenPhaseolus vulgaris andP. acutifolius were examined. Bivalents as well as univalents were found at Metaphase I. The majority o...

    A. Rabakoarihanta, C. T. Shii, M. C. Mok, D. W. S. Mok in Theoretical and Applied Genetics (1980)

  12. No Access

    Article

    Meiosis and fertility of interspecific hybrids between Phaseolus vulgaris L. and P. acutifolius A. Gray

    Meiosis and fertility of interspecific hybrids obtained from reciprocal crosses between Phaseolus vulgaris and P. acutifolius were examined. Bivalents as well as univalents were found at Metaphase I. The majority...

    A. Rabakoarihanta, C. T. Shii, M. C. Mok, D. W. S. Mok in Theoretical and Applied Genetics (1980)

  13. No Access

    Article

    Fertilization and early embryo development in reciprocal interspecific crosses of Phaseolus

    Fertilization and early embryo and endosperm development were examined in Phaseolus vulgaris x P. acutifolius, P. vulgaris x P. lunatus crosses and their reciprocals. The number and length of pollen tubes were no...

    Aimée Rabakoarihanta, D. W. S. Mok, Machteld C. Mok in Theoretical and Applied Genetics (1979)

  14. No Access

    Article

    Interspecific hybridization of phaseolus vulgaris with P. lunatus and P. acutifolius

    The influence of genotypic combinations on the growth of hybrid embryos between Phaseolus vulgaris and P. lunatus, and between P. vulgaris and P. acutifolius was examined. All embryos obtained from P. vulgaris ×

    D. W. S. Mok, M. C. Mok, A. Rabakoarihanta in Theoretical and Applied Genetics (1978)

  15. No Access

    Article

    Monosomics in common bean, Phaseolus vulgaris

    Two monosomics of Phaseolus vulgaris (2n = 22) were found among selfed progeny of plants treated with colchicine. The monosomic chromosomes involved were identified as chromosomes H and J according to the previou...

    D. W. S. Mok, M. C. Mok in Theoretical and Applied Genetics (1977)

  16. No Access

    Article

    Genetic evidence for mode of 2n pollen formation andS-locus map** in potatoes

    Two diploid clones heterozygous for the geney (yellow tuber flesh), and producing diplandroids (2n pollen) by parallel spindles (ps) and premature cytokinesis 1 (pc1), respectively, were crossed to eight white-fl...

    D. W. S. Mok, S. J. Peloquin, A. O. Mendiburu in Potato Research (1976)

  17. Article

    The inheritance of three mechanisms of diplandroid (2n pollen) formation in diploid potatoes

    Genetic data obtained from seven test-crosses (159 progeny) substantiated an earlier hypothesis that all three mechanisms of diplandroid formation (parallel spindles, ps; premature cytokinesis-1, pc-1 and prematu...

    D W S Mok, S J Peloquin in Heredity (1975)

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  18. No Access

    Article

    Cytology of potato triploids producing 2N pollen

    Parallel spindles (ps) were found in a spontaneously occurring triploid plant ofS. chacoense and two triploids ofS. commersonii. This may be the basis for the formation of plump, stainable pollen in these triploi...

    D. W. S. Mok, S. J. Peloquin, T. R. Tarn in American Potato Journal (1975)

  19. No Access

    Article

    Breeding value of 2n pollen (diplandroids) in tetraploid x diploid crosses in potatoes

    The relative breeding value of first division restitution (FDR) and second division restitution (SDR) 2n male gametes from diploids, and n (2x) gametes from tetraploids were compared. This was done by measurin...

    D. W. S. Mok, S. J. Peloquin in Theoretical and Applied Genetics (1975)

  20. No Access

    Article

    Identification of potato chromosomes with Giesma

    A modified Giesma staining technique was used to identify the somatic chromosomes of diploid potatoes. Distinct banding patterns were observed on all 12 chromosomes. Individual chromosomes were identified acco...

    D. W. S. Mok, Heiyoung K. Lee, S. J. Peloquin in American Potato Journal (1974)

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