Abstract
ABSTRACT Auxin and cytokinin (CTK) play important roles in the regulation of rice ( Oryza sativa L.) tiller bud growth. Auxin inhibits bud growth and CTK promotes growth; however, little is known about the positional effects of these hormones in the regulation of rice tiller bud growth. In the present study, indole‐3‐acetic acid (IAA) and 6‐benzylaminopurine (6‐BA) (a synthetic CTK) were applied to different leaves and roots at the tillering and heading stages of rice development, and the growth of rice tiller buds on the unelongated and elongated internodes was measured. Additionally, hormonal variations of the plants were examined and recorded. The objectives of the present study were to investigate the positional effects of auxin and CTK on the regulation of rice tiller bud growth. The results indicate that IAA has a notable positional effect on the regulation of rice tiller bud growth, and the positional effect of IAA was closely related to its polar transport. An increase in leaf IAA levels inhibited the growth of tiller buds located at unelongated nodes; however, growth of tiller buds at elongated nodes was inhibited only when IAA levels were increased in the upper‐stem leaves or the leaves at which the tiller bud was located. Contrary to IAA, 6‐BA had no positional effect on rice tiller bud growth. Application of 6‐BA to different leaves and roots significantly promoted the growth of rice tiller buds at both unelongated and elongated nodes.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 5
Claim · model-written summary
IAA positional effects on rice tiller buds were related to polar transport.
- Taxon
- rice
Oryza sativae0 - Treatment
- IAAe0
- Outcome
- tiller bud growthe0
- Qualifier
- polar transporte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results indicate that IAA has a notable positional effect on the regulation of rice tiller bud growth, and the positional effect of IAA was closely related to its polar transport.”
Claim · model-written summary
Increasing leaf IAA inhibited buds at unelongated nodes.
- Taxon
- tiller budse0
- Organ / stage
- unelongated nodese0
- Treatment
- increase in leaf IAA levelse0
- Outcome
- growth of tiller budse0
- Direction
- inhibitede0
Not reportedComparator
Verbatim
e0“An increase in leaf IAA levels inhibited the growth of tiller buds located at unelongated nodes;”
Claim · model-written summary
At elongated nodes, bud growth was inhibited only by IAA increases in upper-stem or colocated leaves.
- Taxon
- tiller budse0
- Organ / stage
- elongated nodese0
- Treatment
- IAA levels were increasede0
- Outcome
- growth of tiller budse0
- Direction
- inhibitede0
- Qualifier
- upper‐stem leaves or the leaves at which the tiller bud was locatede0
Not reportedComparator
Verbatim
e0“growth of tiller buds at elongated nodes was inhibited only when IAA levels were increased in the upper‐stem leaves or the leaves at which the tiller bud was located.”
Claim · model-written summary
6-BA had no positional effect on rice tiller bud growth.
- Taxon
- riceOryza sativae0
- Treatment
- 6‐BAe0
- Outcome
- positional effect on rice tiller bud growthe0
- Direction
- no positional effecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Contrary to IAA, 6‐BA had no positional effect on rice tiller bud growth.”
Claim · model-written summary
6-BA application to leaves and roots significantly promoted bud growth at unelongated and elongated nodes.
- Taxon
- riceOryza sativae0
- Organ / stage
- unelongated and elongated nodese0
- Treatment
- Application of 6‐BA to different leaves and rootse0
- Outcome
- growth of rice tiller budse0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 6‐BA to different leaves and roots significantly promoted the growth of rice tiller buds at both unelongated and elongated nodes.”
The same questions in other papers
N-benzyladenine · yield · Oryza sativa (rice)Positive and negative results
15 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- positive
13 papers more in this group
See all 17 papers →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.