Claim · model-written summary
Apple pollen tubes inverted raffinose more slowly than sucrose.
- Taxon
- apple-tree
Malus domesticat0 - Treatment
- Raffinosee0
- Outcome
- invertede0
- Direction
- much more slowlye0
- Comparator
- sucrosee0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Raffinose is inverted by pollen tubes much more slowly than sucrose”
t0“apple-tree pollen tubes”
Title
Eva Hrabětová; Jaroslav Tupý Biologia Plantarum 1963. doi:10.1007/bf02930649
Other claims from this paper (7)
- Intervention effect Raffinose was the best tested substrate for apple pollen-tube growth and respiration.
- Intervention effect Apple pollen-tube growth in sucrose was retarded after about six hours.
- Intervention effect Apple pollen-tube respiration intensity decreased in sucrose after about six hours.
- Intervention effect No corresponding decrease occurred in apple pollen tubes in raffinose even after 10 to 20 hours.
- Mechanism Slower inversion is proposed to cause raffinose's long-term effect on apple pollen tubes.
- Intervention effect Apple pollen did not germinate in turanose solution.
- Mechanism The authors propose β-D-fructofuranose as the primary factor in sucrose and raffinose effects on apple pollen-tube growth.