Oil pollution affects the central metabolism of keystone Vachellia (Acacia) trees

Marco Ferrante, Anuma Dangol, Shoshana Didi-Cohen, Gidon Winters, Vered Tzin, Michal Segoli

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Vachellia (formerly Acacia) trees are native to arid environments in Africa and the Arabian Peninsula, where they often support the local animal and plant communities acting as keystone species. The aim of this study was to examine whether oil pollution affected the central metabolism of the native keystone trees Vachellia tortilis (Forssk.) and V. raddiana (Savi), as either adults or seed-lings. The study was conducted in the Evrona Nature Reserve, a desert ecosystem in southern Israel where two major oil spills occurred in 1975 and in 2014. Leaf samples were collected to analyze the central metabolite profiles from oil-polluted and unpolluted adult trees and from Vachellia seedlings growing in oil-polluted and unpolluted soils in an outdoor setup. We found that oil pollution had a stronger effect on one-year-old seedlings than on adult trees, reducing the levels of amino acids, sugars, and organic acids. While adult trees are mildly affected by oil pollution, the effects on young seedlings can cause a long-term reduction in the population of these keystone desert trees, ulti-mately threatening this entire ecosystem.

Original languageEnglish
Article number6660
JournalSustainability
Volume13
Issue number12
DOIs
StatePublished - 2 Jun 2021

Keywords

  • Amino acid
  • Desert
  • Environmental impact
  • Evrona Nature Reserve
  • Oil spill
  • Petroleum
  • Recovery

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Geography, Planning and Development
  • Renewable Energy, Sustainability and the Environment
  • Building and Construction
  • Environmental Science (miscellaneous)
  • Energy Engineering and Power Technology
  • Hardware and Architecture
  • Computer Networks and Communications
  • Management, Monitoring, Policy and Law

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