Claim · model-written summary
Defoliation caused major declines in nodule protein and leghaemoglobin levels.
- Taxon
- white clover plants
Trifolium repenst0 - Treatment
- Defoliatione0
- Outcome
- protein and leghaemoglobin levelse0
- Direction
- declinese0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Defoliation caused major declines in protein and leghaemoglobin levels”
t0“white clover plants”
Title
Defoliation-Induced Stress in Nodules of White Clover
A. J. GORDON; W. KESSLER Journal of Experimental Botany 1990. doi:10.1093/jxb/41.10.1255
Other claims from this paper (15)
- Intervention effect Defoliation reduced the activities of seven listed nodule enzymes.
- Intervention effect Defoliation reduced activities of aspartate amino transferase, glutamine synthetase and phosphoenolpyruvate carboxylase.
- Intervention effect Defoliation reduced malate dehydrogenase activity.
- Intervention effect Continuous defoliation caused nodule enzyme activities to decline throughout 17 days.
- Intervention effect After one defoliation, nodule enzyme activities fell for 7 to 10 days and recovered to control levels with leaf regrowth.
- Intervention effect After one defoliation, PEP carboxylase and glutamine synthetase fell more than total protein.
- Intervention effect Alcohol dehydrogenase specific activity increased after one defoliation.
- Intervention effect Alcohol dehydrogenase declined only under continuous defoliation.
- Intervention effect Amino peptidase activity declined with other nodule enzymes.
- Intervention effect Endopeptidase activity rose significantly four days after either defoliation regimen.
- Intervention effect Endopeptidase activity returned to control levels with new leaf regrowth.
- Intervention effect With continuous defoliation, endopeptidase activity rose fivefold.
- Observation Immunoblotting showed disappearance of glutamine synthetase and leghaemoglobin antigens.
- Intervention effect Nitrogenase components I and II declined on the same time scale as host proteins after defoliation.
- Observation As leaves regrew and nodule nitrogen fixation resumed, the specific nodule proteins became detectable again.