Growth Respiration of a Flood‐Tolerant and a Flood‐Intolerant Senecio Species: Correlation between Calculated and Experimental Values

HANS LAMBERS, EVELIENE STEINGRÖVER

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Root growth respiration of Senecio aquaticus Hill (flood‐tolerant) and Senecio jacobaea L. (flood‐sensitive) was calculated, assuming different P: O ratios. The growth respiration values were calculated on the basis of the chemical composition of root and shoot dry matter, in combination with published data on the energy costs of biosynthetic and transport processes. The comparison between calculated and experimental values suggests a relatively low efficiency of ATP utilization in the roots of the flood‐tolerant species. Root growth respiration of S. congestus (R.Br.)DC., which is also flood‐tolerant, and Plantago lanceolata L. were also determined. The data showed that not all the flood‐tolerant species investigated had high root growth respiration values. An “overflow model’ is proposed to explain observed differences in root growth respiration between species.

Original languageEnglish
Pages (from-to)219-224
Number of pages6
JournalPhysiologia Plantarum
Volume43
Issue number3
DOIs
Publication statusPublished - 1 Jan 1978
Externally publishedYes

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