Abstract
BACKGROUND: Photoperiod-sensitivity is a critical endogenous regulatory mechanism for plant growth and development under specific environmental conditions, while phosphate and sucrose signaling processes play key roles in cell growth and organ initiation. MicroRNA399 is phosphate-responsive, but, whether it has roles in other metabolic processes remains unknown. RESULTS: MicroRNA399 was determined to be sucrose-responsive through a microRNA array assay. High levels of sucrose inhibited the accumulation of microRNA399 family under phosphate starvation conditions in Arabidopsis thaliana. Similarly, exogenous sucrose supplementation also reduced microRNA399 expression in maize at developmental transition stages. RNA sequencing of a near-isogenic line(photoperiod-sensitive) line and its recurrent parent Huangzao4, a photoperiod-insensitive line, was conducted at various developmental stages. Members of microRNA399 family were down-regulated under long-day conditions in the photoperiod-sensitive near-isogenic line that accumulated more sucrose in vivo compared with the control line Huangzao4. CONCLUSION: MicroRNA399s may play central roles in the integration of sucrose sensing and photoperiodic responses under long day conditions in maize.
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Claims 6
Claim · model-written summary
MicroRNA399 was sucrose responsive in a microRNA array assay.
- Outcome
- MicroRNA399 was determined to be sucrose-responsivee0
Not reportedTaxon
Verbatim
e0“MicroRNA399 was determined to be sucrose-responsive through a microRNA array assay”
Claim · model-written summary
High sucrose inhibited microRNA399 accumulation in phosphate-starved Arabidopsis thaliana.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianae0 - Treatment
- High levels of sucrosee0
- Gene
- microRNA399 familye0
- Outcome
- accumulation of microRNA399 familye0
- Direction
- inhibitede0
- Qualifier
- under phosphate starvation conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High levels of sucrose inhibited the accumulation of microRNA399 family under phosphate starvation conditions in Arabidopsis thaliana”
Claim · model-written summary
Exogenous sucrose reduced microRNA399 expression in maize at developmental transition stages.
- Organ / stage
- developmental transition stagese0
- Treatment
- exogenous sucrose supplementatione0
- Gene
- microRNA399e0
- Outcome
- microRNA399 expressione0
- Direction
- reducede0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exogenous sucrose supplementation also reduced microRNA399 expression in maize at developmental transition stages”
Claim · model-written summary
MicroRNA399 family members were down-regulated in a photoperiod-sensitive maize line under long days relative to Huangzao4.
- Material
- photoperiod-sensitive near-isogenic linee0
- Treatment
- long-day conditionse0
- Gene
- microRNA399 familye0
- Outcome
- Members of microRNA399 familye0
- Direction
- down-regulatede0
- Comparator
- control line Huangzao4e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Members of microRNA399 family were down-regulated under long-day conditions in the photoperiod-sensitive near-isogenic line that accumulated more sucrose in vivo compared with the control line Huangzao4”
e1“in maize at developmental transition stages”
Claim · model-written summary
The photoperiod-sensitive near-isogenic line accumulated more sucrose than Huangzao4.
- Material
- photoperiod-sensitive near-isogenic linee0
- Outcome
- sucrosee0
- Direction
- moree0
- Comparator
- control line Huangzao4e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the photoperiod-sensitive near-isogenic line that accumulated more sucrose in vivo compared with the control line Huangzao4”
e1“in maize at developmental transition stages”
Claim · model-written summary
The authors suggest microRNA399 may integrate sucrose sensing and photoperiodic responses in maize under long days.
- Gene
- MicroRNA399se0
- Outcome
- integration of sucrose sensing and photoperiodic responsese0
- Qualifier
- under long day conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“MicroRNA399s may play central roles in the integration of sucrose sensing and photoperiodic responses under long day conditions in maize”
The same questions in other papers
sucrose · molecular: metabolites · Arabidopsis thaliana (thale cress)Positive and negative results
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See all 5 papers →sucrose · molecular: expression · Zea mays (maize)Positive and negative results
1 paper in the same direction as this paper · 6 in the opposite direction
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See all 8 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.