Abstract
Adventitious root (AR) formation is characterized by a sequence of physiological and morphological processes and determined by external factors, including mineral nutrition, the impacts of which remain largely elusive. Morphological and anatomical evaluation of the effects of mineral elements on AR formation in leafy cuttings of Petunia hybrida revealed a striking stimulation by iron (Fe) and a promotive action of ammonium (NH4+). The optimal application period for these nutrients corresponded to early division of meristematic cells in the rooting zone and coincided with increased transcript levels of mitotic cyclins. Fe-localization studies revealed an enhanced allocation of Fe to the nuclei of meristematic cells in AR initials. NH4+ supply promoted AR formation to a lesser extent, most likely by favoring the availability of Fe. We conclude that Fe acts locally by promoting cell division in the meristematic cells of AR primordia. These results highlight a specific biological function of Fe in AR development and point to an unexploited importance of Fe for the vegetative propagation of plants from cuttings.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Iron stimulated adventitious root formation in leafy cuttings of Petunia hybrida.
- Taxon
- Petunia hybrida
Petunia ×hybridae0 - Organ / stage
- leafy cuttingse0
- Treatment
- iron (Fe)e0
- Outcome
- AR formatione0
- Direction
- increaseinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Morphological and anatomical evaluation of the effects of mineral elements on AR formation in leafy cuttings of Petunia hybrida revealed a striking stimulation by iron (Fe)”
Claim · model-written summary
Ammonium promoted adventitious root formation in Petunia hybrida.
- Taxon
- Petunia hybridaPetunia ×hybridae0
- Treatment
- ammonium (NH4+)e1
- Outcome
- AR formatione0
- Direction
- increaseinferrede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Morphological and anatomical evaluation of the effects of mineral elements on AR formation in leafy cuttings of Petunia hybrida revealed a striking stimulation by iron (Fe)”
e1“a promotive action of ammonium (NH4+)”
Claim · model-written summary
NH4+ supply promoted adventitious root formation to a lesser extent.
- Taxon
- Petunia hybridaPetunia ×hybridae0
- Treatment
- NH4+ supplye4
- Outcome
- AR formatione4
- Direction
- promotede4
- Qualifier
- to a lesser extente4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Morphological and anatomical evaluation of the effects of mineral elements on AR formation in leafy cuttings of Petunia hybrida revealed a striking stimulation by iron (Fe)”
e4“NH4+ supply promoted AR formation to a lesser extent, most likely by favoring the availability of Fe”
Claim · model-written summary
The optimal application period corresponded to early division of meristematic cells in the rooting zone.
- Taxon
- Petunia hybridaPetunia ×hybridae0
- Treatment
- optimal application periode2
- Outcome
- early division of meristematic cellse2
- Qualifier
- in the rooting zonee2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Morphological and anatomical evaluation of the effects of mineral elements on AR formation in leafy cuttings of Petunia hybrida revealed a striking stimulation by iron (Fe)”
e2“The optimal application period for these nutrients corresponded to early division of meristematic cells in the rooting zone and coincided with increased transcript levels of mitotic cyclins”
Claim · model-written summary
The optimal application period coincided with increased transcript levels of mitotic cyclins.
- Taxon
- Petunia hybridaPetunia ×hybridae0
- Treatment
- optimal application periode2
- Outcome
- transcript levels of mitotic cyclinse2
- Direction
- increasede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Morphological and anatomical evaluation of the effects of mineral elements on AR formation in leafy cuttings of Petunia hybrida revealed a striking stimulation by iron (Fe)”
e2“The optimal application period for these nutrients corresponded to early division of meristematic cells in the rooting zone and coincided with increased transcript levels of mitotic cyclins”
Claim · model-written summary
Fe was enhanced in the nuclei of meristematic cells in adventitious root initials.
- Taxon
- Petunia hybridaPetunia ×hybridae0
- Organ / stage
- AR initialse3
- Outcome
- allocation of Fe to the nuclei of meristematic cellse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Morphological and anatomical evaluation of the effects of mineral elements on AR formation in leafy cuttings of Petunia hybrida revealed a striking stimulation by iron (Fe)”
e3“Fe-localization studies revealed an enhanced allocation of Fe to the nuclei of meristematic cells in AR initials”
Claim · model-written summary
Fe acts locally by promoting cell division in the meristematic cells of adventitious root primordia.
- Taxon
- Petunia hybridaPetunia ×hybridae0
- Compound
- Fee5
- Outcome
- cell divisione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Morphological and anatomical evaluation of the effects of mineral elements on AR formation in leafy cuttings of Petunia hybrida revealed a striking stimulation by iron (Fe)”
e5“We conclude that Fe acts locally by promoting cell division in the meristematic cells of AR primordia”
The same questions in other papers
nitrogen · growth · Petunia x hybrida (garden petunia)Results agree
2 papers in the same direction as this paper
- positive
- 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.