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Light, dark and growth regulator involvement in groundnut (Arachis hypogaea L.) pod development

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Gynophore elongation and pod formation were studied in peanut plants (Arachis hypogaea L.) under light and dark conditions in vivo. The gynophores elongated until pod formation was initiated. Pod (3–20 mm length) development could be totally controlled by alternating dark (switched on) and light (switched off) conditions, repeatedly. Gynophore elongation responded conversely to light/dark conditions, compared to pods. In this study we aimed to correlate the light/dark effects with endogenous growth substances. The levels of endogenous growth substances were determined in the different stags of pod development. Gynophores shortly after penetration into the soil, ‘white’ gynophores, released twice the amount of ethylene as compared to the aerial green ones, or to gynophores bearing pods. Ethylene inhibitors had no effect on the percent of gynophores that developed pods, but affected pod size which were smaller compared to the control. A similar level of IAA was extracted from gynophore tips of green gynophores, ‘white’ gynophores and pods. ABA levels differed between the three stages and were highest in the green gynophores and lowest in the pods.

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abscisic acid


aminooxyacetic acid


enzyme linked immunosorbent assay


2-chloroethanephosphonic acid


gas chromatography


High Performance Liquid Chromatography


indole-3-acetic acid


naphthalene acetic acid




silver thiosulfhate


2,3,6-triiodobenzoic acid


  1. Smith BW (1950) Arachis hypogaea. Aerial flower subterranean fruit. Am J Bot 37: 802–815

    Google Scholar 

  2. Darwin C (1966) The power of movement in plants. An unabridged republication of the 1881 edition. pp 512–520. New York: Da Capo Press

    Google Scholar 

  3. Ziv M and Zamski E (1975) Geotropic responses and pod development in gynophore explants of peanut (Arachis hypogaea L.) cultured in vitro. Ann Bot 39: 579–583

    Google Scholar 

  4. Zamski E and Ziv M (1976) Pod formation and its geotropic orientation in the peanut, Arachis hypogaea L., in relation to light and mechanical stimulus. Ann Bot 40: 631–636

    Google Scholar 

  5. Jacobs WP (1951) Auxin relationship in an intercalary meristem. Further studies on the gynophore of Arachis hypogaea L. Am J Bot 38: 307–310

    Google Scholar 

  6. Ziv M and Kahana O (1988) The role of the peanut (Arachis hypogaea) ovular tissue in the photo-morphogenetic response of the embryo. Plant Sci 57: 159–164

    Google Scholar 

  7. Ketring DL and Schubert AM (1980) Growth, flowering and fruiting responses of peanut (Arachis hypogaea L.) plants to ethrel. Crop Sci 20: 327–329

    Google Scholar 

  8. Koller D, Ofir M and Kigel J (1970) Environmental control of weed physiology. Annu Rep Res, USDA PL 480

  9. Murashiga T and Skoog F (1962) A revised medium for rapid growth and bio assay with tobacco tissue cultures. Physiol Plant 15: 473–493

    Google Scholar 

  10. Bohner J and Bangerth F (1988) Cell number, cell size and hormone levels in semi-isogenic mutants of Lycopersicon pimpinellifolium differing in fruit size. Physiol Plant 72: 316–320

    Google Scholar 

  11. Sagee O, Maoz A, Mertens R, Goren R and Riov J (1986) Comparison of different enzyme immunoassays for measuring indole-3-acetic acid in vegetative citrus tissues. Physiol Plant 68: 265–270

    Google Scholar 

  12. Jacobs WP (1947) The development of the gynophore of the peanut plant, Arachis hypogaea L. I. The distribution of mitoses, the region of greatest elongation, and the maintenance of vascular continuity in the intercalary meristem. Am J Bot 34: 361–370

    Google Scholar 

  13. Pattee HE, Stalker HT and Moss JP (1988) Embryo rescue in wide crosses in Arachis. 2). Embryo development in cultured peg tips of Arachis hypogaea. Ann Bot 61: 103–112

    Google Scholar 

  14. Moss JP, Stalker HT and Pattee HE (1988) Embryo rescue in wide crosses in Arachis. 1.). Culture of ovules in peg tips of Arachis hypogaea. Ann Bot 61: 1–7

    Google Scholar 

  15. Narasimhulu SB and Reddy GM (1984) In vitro flowering and pod formation from cotyledons of groundnut (Arachis hypogaea L.) Theor Appl Genet 69: 87–91

    Google Scholar 

  16. Thompson LK, Ziv M and Deitzer GF (1985) Photocontrol of peanut (Arachis hypogaea L.) embryo and ovule development in vitro. Plant Physiol 78: 370–373

    Google Scholar 

  17. Imaseki H (1985) Hormonal control of wound-induced responses. In: Pirson A and Zimmermann MH (eds) Encyclopedia of Plant Physiology, Vol. 11, pp 485–512. Berlin: Springer-Verlag

    Google Scholar 

  18. Qi-li F and Rui-chi P (1989) Relationship between plant hormones and pod development in in-vitro cultured gynophores of groundnut. Int Arachis Newsl 5: 11–12

    Google Scholar 

  19. Hedges RA and Fletcher J (1979) Ethylene evolution from peanut pegs. Plant Physiol Suppl 63: 66

    Google Scholar 

  20. Wang CY (1987) Use of ethylene biosynthesis inhibitors in horticulture. Acta Hortic 201: 187–194

    Google Scholar 

  21. Veen H (1987) Use of inhibitors of ethylene action. Acta Hortic 201: 213–222

    Google Scholar 

  22. Abeles FB (1973) Ethylene in Plant Biology. New York: Academic Press

    Google Scholar 

  23. Kahana O (1984) Factors involved in developmental control of the pod, ovule and embryo in peanut (Arachis hypogaea L.) in vitro. M.Sc. Thesis. Faculty of Agriculture. Israel: The Hebrew University of Jerusalem

  24. Raghavan V (1986) Embryogenesis in Angiosperms, 84–114. Cambridge: Cambridge University Press

    Google Scholar 

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Shlamovitz, N., Ziv, M. & Zamski, E. Light, dark and growth regulator involvement in groundnut (Arachis hypogaea L.) pod development. Plant Growth Regul 16, 37–42 (1995).

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