Do sprouting tree species on erosion-prone sites carry large reserves of resources?

A. Sakai, S. Sakai, F. Akiyama

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)

Abstract

Saplings of Euptelea polyandra were studied to determine whether tree species found on unstable hillslopes of temperate, old-growth forests in Japan carry substantial storage materials for sprouting replacement genets, as is the case with resprouter species of fire-prone areas, Concentrations (% d. wt basis) of carbohydrates (starch, sucrose, glucose and fructose) contained in roots, stems and leaves were measured in summer and winter. E. polyandra saplings were compared with those of Quercus serrata (a frequently sprouting tree), and those of Mallotus japonicus and Idesia polycarpa (rarely sprouting trees) in the same forest. Total concentrations of carbohydrates (the sum of starch, sucrose, glucose and fructose) in roots were lowest in E. polyandra in both summer and winter. In addition, E, polyandra had a lower ratio of root biomass to total plant biomass than Q. serrata, but similar to that of the nonsprouting species. M. japonicus and I. polycarpa. On the other hand, the total concentration of carbohydrates in the above-ground parts were similar in the four species in both summer and winter. These results indicate that E. polyandra had less long-term storage resources to implement sprouting, in spite of its apparent effectiveness in sprouting. We propose hypotheses to explain the reason why E. polyandra stores a relatively small amount of resources for sprouting.

Original languageEnglish
Pages (from-to)625-630
Number of pages6
JournalAnnals of botany
Volume79
Issue number6
DOIs
Publication statusPublished - 1997 Jun

Keywords

  • Carbohydrate concentration
  • Euptelea polyandra Sieb. et Zacc
  • Ground-surface disturbance
  • Idesia polycarpa Maxim
  • Mallotus japonicus (Thunb.) Muell. Arg.
  • Quercus serrata Thunb
  • Resprouter
  • Root dry weight ratio
  • Soluble sugars
  • Sprouting
  • Starch

ASJC Scopus subject areas

  • Plant Science

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