Effects of juglone on growth of cucumber seedlings with respect to physiological and anatomical parameters


Terzi I., KOCAÇALIŞKAN İ. , Benlioglu O., Solak A.

ACTA PHYSIOLOGIAE PLANTARUM, vol.25, no.4, pp.353-356, 2003 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 25 Issue: 4
  • Publication Date: 2003
  • Doi Number: 10.1007/s11738-003-0016-1
  • Title of Journal : ACTA PHYSIOLOGIAE PLANTARUM
  • Page Numbers: pp.353-356
  • Keywords: anatomy, catecholase, chlorophyll content, cucumber, juglone, seedling growth, tyrosinase, GERMINATION, QUANTITIES

Abstract

Effects of juglone on seedling growth of cucumber (Cucumis sativus cv. Beith Alpha) with respect to physiological and anatomical parameters were investigated. Growth parameters (seedling elongation, fresh and dry weights) were reduced by I mM juglone. Juglone also decreased chlorophyll a and b contents and reduced some anatomical tissues (xylem vessel and bundle radius of stem, stomata length and stomata number of the cotyledons). The anatomical changes in stem and cotyledon of the seedlings were related to growth inhibiting effect of juglone. On the other hand, increase in catecholase and tyrosinase activities by the effect of juglone were also recorded.