Abstract
SUMMARY The uptake of 14 C and movement of 14 C‐labelled assimilates in wheat plants inoculated with Ophiobolus graminis was examined following exposure of the second youngest leaf to 14 CO 2 . Autoradiographs of plants with infected seminal roots showed that assimilates were not translocated past the sites of root infection but accumulated in the undamaged portions of infected root systems, in particular the developing crown roots. There was no evidence that assimilates accumulated in the vicinity of O. graminis lesions. The net assimilation of 14 CO 2 by wheat plants over a 5 h feeding period was not significantly affected by O. graminis infection. However, infection reduced the amount of 14 C lost through respiration. Infection delayed the transfer of labelled assimilates from the fed leaf to the remainder of the plant but increased the proportion translocated to the roots. The latter effect was not apparent when infected plants were continuously irrigated during, and for 20 h following, the feeding period.
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Claims 8
Claim · model-written summary
Assimilates in infected wheat roots did not move past infection sites.
- Taxon
- wheat
Triticum aestivume0t0 - Interactor
- Ophiobolus graminis
Gaeumannomyces graminise0t0pathogen - Outcome
- assimilatese0
- Direction
- not translocatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“assimilates were not translocated past the sites of root infection”
t0“Effect of Ophiobolus graminis infection on the assimilation and distribution of 14C in wheat”
Claim · model-written summary
Assimilates accumulated in undamaged infected roots, especially developing crown roots.
- Taxon
- wheatTriticum aestivume0t0
- Organ / stage
- developing crown rootse0
- Direction
- accumulatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“accumulated in the undamaged portions of infected root systems, in particular the developing crown roots”
t0“Effect of Ophiobolus graminis infection on the assimilation and distribution of 14C in wheat”
e1“assimilates were not translocated past the sites of root infection”
Claim · model-written summary
No assimilate accumulation was found near O. graminis lesions.
- Taxon
- wheatTriticum aestivume0t0
- Interactor
- O. graminisGaeumannomyces graminise0pathogen
- Outcome
- assimilatese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no evidence that assimilates accumulated in the vicinity of O. graminis lesions.”
t0“Effect of Ophiobolus graminis infection on the assimilation and distribution of 14C in wheat”
Claim · model-written summary
Infection did not significantly affect wheat net 14 CO 2 assimilation during five hours.
- Taxon
- wheatTriticum aestivume0
- Treatment
- O. graminis infectione0
- Interactor
- O. graminisGaeumannomyces graminise0pathogen
- Outcome
- net assimilation of 14 CO 2e0
- Direction
- not significantly affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The net assimilation of 14 CO 2 by wheat plants over a 5 h feeding period was not significantly affected by O. graminis infection.”
Claim · model-written summary
Infection reduced respiratory carbon loss.
- Taxon
- wheatTriticum aestivume0t0
- Treatment
- infectione0
- Outcome
- amount of 14 C lost through respiratione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“infection reduced the amount of 14 C lost through respiration”
t0“Effect of Ophiobolus graminis infection on the assimilation and distribution of 14C in wheat”
Claim · model-written summary
Infection delayed assimilate transfer from the fed leaf to the rest of the plant.
- Taxon
- wheatTriticum aestivume0t0
- Treatment
- Infectione0
- Outcome
- transfer of labelled assimilatese0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Infection delayed the transfer of labelled assimilates from the fed leaf to the remainder of the plant”
t0“Effect of Ophiobolus graminis infection on the assimilation and distribution of 14C in wheat”
Claim · model-written summary
Infection increased the proportion of assimilates sent to roots.
- Taxon
- wheatTriticum aestivume0t0
- Treatment
- infectione0
- Outcome
- proportion translocated to the rootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“infection delayed the transfer of labelled assimilates from the fed leaf to the remainder of the plant but increased the proportion translocated to the roots”
t0“Effect of Ophiobolus graminis infection on the assimilation and distribution of 14C in wheat”
Claim · model-written summary
Continuous irrigation removed the infection-related increase in assimilate transport to roots.
- Taxon
- wheatTriticum aestivume0t0
- Treatment
- continuously irrigatede0
- Outcome
- latter effecte0
- Direction
- not apparente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The latter effect was not apparent when infected plants were continuously irrigated during, and for 20 h following, the feeding period.”
t0“Effect of Ophiobolus graminis infection on the assimilation and distribution of 14C in wheat”
The same questions in other papers
infection · physiology: respiration · Triticum aestivum (wheat)Positive and negative results
1 in the opposite direction
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.