Paper · 1975 · PLANT PHYSIOLOGY

Maize Mitochondria

D. R. Pring

6
claims
12
verbatim quotes
5
citations
1
research areas
✓
Open access

Abstract

Cytochromes a + a(3), b, and c of mitochondria prepared from fertile and cytoplasmic male-sterile single- and double-cross maize (Zea mays L.) lines were examined by difference spectra at 25 C. The sterile lines contained the full complement of cytochromes, and absorption maxima were identical for each fertile-sterile combination. A small, but significant, increase of b cytochromes was detected in each sterile line, whereas the quantities of cytochromes a + a(3) and c were essentially unchanged. The yield of mitochondrial protein per gram of tissue was higher for the single-than for the double-cross, whereas the sterile cytoplasm did not affect ultimate mitochondrial yield.

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Claims 6

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Sterile maize lines retained the full complement of cytochromes.

Taxon
maizeZea mayst0
Material
sterile linese0
Outcome
full complement of cytochromese0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The sterile lines contained the full complement of cytochromes”

✓ located verbatim in the source · abstract, characters 194–256 · show in text ↑
t0

“Maize”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Absorption maxima matched within each fertile and sterile pair.

Taxon
maizeZea mayst0
Outcome
absorption maximae0
Direction
identicale0
Comparator
fertile-sterile combinatione0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“absorption maxima were identical for each fertile-sterile combination.”

✓ located verbatim in the source · abstract, characters 262–332 · show in text ↑
t0

“Maize”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

b cytochromes increased slightly but significantly in every sterile line.

Taxon
maizeZea mayst0
Material
sterile linee0
Outcome
b cytochromese0
Direction
increasee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“A small, but significant, increase of b cytochromes was detected in each sterile line”

✓ located verbatim in the source · abstract, characters 333–418 · show in text ↑
t0

“Maize”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Cytochromes a + a(3) and c were essentially unchanged in sterile lines.

Taxon
maizeZea mayst0
Outcome
quantities of cytochromes a + a(3) and ce0
Direction
essentially unchangede0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the quantities of cytochromes a + a(3) and c were essentially unchanged.”

✓ located verbatim in the source · abstract, characters 428–500 · show in text ↑
t0

“Maize”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Mitochondrial protein yield per tissue mass was higher in single-cross than double-cross maize.

Taxon
maizeZea mayst0
Material
singlee0
Outcome
yield of mitochondrial protein per gram of tissuee0
Direction
highere0
Comparator
double-crosse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The yield of mitochondrial protein per gram of tissue was higher for the single-than for the double-cross”

✓ located verbatim in the source · abstract, characters 501–606 · show in text ↑
t0

“Maize”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Sterile cytoplasm did not affect final mitochondrial yield.

Taxon
maizeZea mayst0
Material
sterile cytoplasme0
Outcome
ultimate mitochondrial yielde0
Direction
did not affecte0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the sterile cytoplasm did not affect ultimate mitochondrial yield.”

✓ located verbatim in the source · abstract, characters 616–682 · show in text ↑
t0

“Maize”

✓ located verbatim in the source · title, characters 0–5 · show in text ↑