Abstract
Plants (N = 102) from 23 populations of Talinum, representing five morphologically similar species, were examined in a test of the hypothesis that ploidal level may be correlated with levels of Crassulacean acid metabolism. When grouped by species and ploidal level, two groups of tetraploid plants, T. calcaricum and tetraploid individuals of T. calycinum, had significantly greater malic acid accumulations than any other group, including diploid individuals of T. calycinum. Another tetraploid, T. teretifolium, did not show greater malic acid fluctuations than the diploids, including two putative ancestors (T. mengesii and T. parviflorum). Similarly, malic acid fluctuations in tetraploid individuals of T. parviflorum were not different from diploid individuals of the same species. Nonetheless, when all plants were compared, nocturnal accumulations of malic acid in tetraploid plants were significantly greater than those of diploid plants.
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Claims 5
Claim · model-written summary
Tetraploid T. calcaricum had significantly greater malic acid accumulation than other groups.
- Taxon
- T. calcaricum
Phemeranthus calcaricuse0 - Material
- tetraploid plantse0
- Outcome
- malic acid accumulationse0
- Direction
- greatere0
- Comparator
- any other groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“two groups of tetraploid plants, T. calcaricum and tetraploid individuals of T. calycinum, had significantly greater malic acid accumulations than any other group”
Claim · model-written summary
Tetraploid T. calycinum had significantly greater malic acid accumulation than other groups.
- Taxon
- T. calycinum
Phemeranthus calycinuse0 - Material
- tetraploid individualse0
- Outcome
- malic acid accumulationse0
- Direction
- greatere0
- Comparator
- diploid individuals of T. calycinume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“two groups of tetraploid plants, T. calcaricum and tetraploid individuals of T. calycinum, had significantly greater malic acid accumulations than any other group, including diploid individuals of T. calycinum.”
Claim · model-written summary
Tetraploid T. teretifolium did not have greater malic acid fluctuations than diploids.
- Taxon
- T. teretifolium
Phemeranthus teretifoliuse0 - Outcome
- malic acid fluctuationse0
- Direction
- did not show greatere0
- Comparator
- the diploidse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“T. teretifolium, did not show greater malic acid fluctuations than the diploids”
Claim · model-written summary
Tetraploid T. parviflorum malic acid fluctuations did not differ from diploid plants of that species.
- Taxon
- T. parviflorum
Phemeranthus parvifloruse0 - Material
- tetraploid individualse0
- Outcome
- malic acid fluctuationse0
- Direction
- not differente0
- Comparator
- diploid individualse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“malic acid fluctuations in tetraploid individuals of T. parviflorum were not different from diploid individuals of the same species.”
Claim · model-written summary
Across all Talinum plants, tetraploids accumulated significantly more malic acid nocturnally than diploids.
- Material
- tetraploid plantse0
- Outcome
- nocturnal accumulations of malic acide0
- Direction
- greatere0
- Comparator
- diploid plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nocturnal accumulations of malic acid in tetraploid plants were significantly greater than those of diploid plants.”
t0“TALINUM”