Claim · model-written summary
DABCO, methionine, histidine, benzoate and formate did not inhibit chlorophyll a destruction.
- Taxon
- spinach
Spinacia oleraceat0 - Treatment
- DABCOe0
- Outcome
- Chlorophyll a destructione1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but not by l,4-diazabicyclo-[2,2,2]-octane (DABCO), methio-nine, histidine, benzoate and formate.”
e1“Chlorophyll a destruction was inhibited by l,2-dihydroxybenzene-3,5-disulfonate (tiron)”
t0“spinach”
Title
Ken-ichiro Shimazaki; Takeshi Sakaki; Noriaki Kondo; et al. Plant and Cell Physiology 1980. doi:10.1093/oxfordjournals.pcp.a076095
Other claims from this paper (16)
- Intervention effect SO2 under light destroyed chlorophyll a and carotenoids after 2 to 3 hours.
- Intervention effect Chlorophyll b remained undamaged during eight hours of SO2 exposure.
- Intervention effect Pheophytin a was unaffected by SO2 fumigation.
- Intervention effect Illuminating fumigated leaf disks broke down chlorophyll a and carotenoids, whereas darkness did not.
- Intervention effect Nitrogen suppressed pigment destruction.
- Intervention effect Tiron, hydroquinone and ascorbate inhibited chlorophyll a destruction.
- Intervention effect Phenazine methosulfate inhibited chlorophyll a destruction.
- Intervention effect Methyl viologen stimulated chlorophyll a destruction.
- Intervention effect Added SOD inhibited chlorophyll a destruction in fumigated leaf homogenate.
- Intervention effect Endogenous SOD activity fell to 40% after two hours of SO2 fumigation, before chlorophyll loss.
- Mechanism The authors attributed SO2-induced chlorophyll a destruction to superoxide radicals.
- Observation Malondialdehyde formed in SO2-fumigated leaves.
- Intervention effect Tiron, hydroquinone and DABCO inhibited MDA formation.
- Intervention effect Benzoate and formate did not inhibit MDA formation.
- Intervention effect D2O increased MDA formation.
- Mechanism The authors attributed lipid peroxidation to singlet oxygen generated from superoxide.