Investigation on the relationship between salinity stress and epibrassinolide in spinach (Spinacia oleracea L. cv. Matador) seedlings


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Seven S., Sağlam S.

CUMHURIYET SCIENCE JOURNAL, vol.41, no.1, pp.131-138, 2020 (Peer-Reviewed Journal)

  • Publication Type: Article / Article
  • Volume: 41 Issue: 1
  • Publication Date: 2020
  • Doi Number: 10.17776/csj.596360
  • Journal Name: CUMHURIYET SCIENCE JOURNAL
  • Journal Indexes: Directory of Open Access Journals, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.131-138
  • Istanbul University Affiliated: Yes

Abstract

Soil salinity is a very important abiotic stress condition that affects plant growth and crop yield. Photosynthetic activity, fresh weight, total protein amount decrease due to salinity condition. Brassinosteroids (BR) are a new group of hormones in the steroidal structure which is involved in the plant hormone group. BRs play an important role in various physiological processes. BR shave a curative effect on the plants exposed to environmental stress. In this study, the effect on seedling development was examined by spraying 24-epibrassinolide (eBL), the active form of brassinosteroids, on the seedlings exposed to salt stress. For this purpose, seedlings are divided into three groups such as Hoagland, Hoagland+NaCl, Hoagland+NaCl+eBL. As a result of preliminary experiments, 150 mM NaCl as the salt concentration reducing seedling growth and 10-9 M eBL which promotes growth by reducing this inhibition were determined as the appropriate concentration. This study; biochemical analysis of spinach seedlings exposed to salt stress and applied to eBL showed the curative effect of eBL on salt toxicity.