Abstract
Plant establishment is a risky phase of the plant life cycle because juvenile individuals cannot produce seeds and their vegetative regeneration is constrained by a lack of reserve meristems and carbon storage. On the other hand, conditions in the period following establishment, during establishment growth, affect the vegetative regeneration and clonal growth of the plant in the future. Bud-bank formation was studied in a root-sprouting clonal herb Epilobium angustifolium L. (= Chamaenerion angustifolium (L.) Scop.), a plant with root buds differing in size and number of leaf primordia, during establishment growth. We tested two hypotheses: (i) large and small buds differ in their response to stress and disturbance, and (ii) a heterogeneous soil environment does not affect bud-bank formation. We rejected both hypotheses because (i) the proportion of small buds was about 80% and was not affected by nutrient availability and substrate heterogeneity, and (ii) plants produced more buds per root biomass under conditions of nutrient shortage in both homogeneous and heterogeneous substrates, but the effect was masked by lower root biomass. Thus, bud production for the whole plant was not affected by either nutrient availability or soil heterogeneity and reached 20 to 100 buds per plant.
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Claims 5
Claim · model-written summary
Small buds comprised about 80% of buds.
- Taxon
- Epilobium angustifolium
Chamaenerion angustifoliumt0 - Organ / stage
- small budse0
- Outcome
- proportion of small budse0
- Value
- 80%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the proportion of small buds was about 80%”
t0“Epilobium angustifolium”
Claim · model-written summary
Nutrients and substrate heterogeneity did not change the small-bud proportion.
- Taxon
- Epilobium angustifoliumChamaenerion angustifoliumt0
- Treatment
- nutrient availability and substrate heterogeneitye0
- Outcome
- proportion of small budse0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the proportion of small buds was about 80% and was not affected by nutrient availability and substrate heterogeneity”
t0“Epilobium angustifolium”
Claim · model-written summary
Nutrient shortage increased buds per root biomass in both substrate types.
- Taxon
- Epilobium angustifoliumChamaenerion angustifoliumt0
- Treatment
- nutrient shortagee0
- Outcome
- buds per root biomasse0
- Direction
- moree0
- Setting
- both homogeneous and heterogeneous substratese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plants produced more buds per root biomass under conditions of nutrient shortage in both homogeneous and heterogeneous substrates”
t0“Epilobium angustifolium”
Claim · model-written summary
Lower root biomass masked the increased bud production per root mass.
- Taxon
- Epilobium angustifoliumChamaenerion angustifoliumt0
- Outcome
- root biomasse0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but the effect was masked by lower root biomass”
t0“Epilobium angustifolium”
Claim · model-written summary
Whole-plant bud production was unaffected by nutrient availability or soil heterogeneity.
- Taxon
- Epilobium angustifoliumChamaenerion angustifoliumt0
- Treatment
- nutrient availability or soil heterogeneitye0
- Outcome
- bud production for the whole plante0
- Direction
- not affectede0
- Value
- 20 to 100 buds per plante0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“bud production for the whole plant was not affected by either nutrient availability or soil heterogeneity and reached 20 to 100 buds per plant”
t0“Epilobium angustifolium”