Abstract
The Finnish barley cultivar (Hordeum vulgare L, cv. Hankkija-673) was grown in solution culture for periods of one and two months. The one month old plants had seminal roots, whereas the two month old plants grew adventitious roots from the lower nodes. The roots were tested for ADH activity during aeration, during 3 d of hypoxic treatment (brought about by passing nitrogen through the nutrient solution), and during a 4 d recovery period. The ADH activity, calculated on a protein basis, rose about 4-fold during the nitrogen treatment, the greatest increase occurring in the adventitious roots. Differences in the kinetic properties of ADH during the hypoxic period were also found between seminal and adventitious roots. The Km for acetaldehyde changed little in the seminal roots during the hypoxic treatment, but in the adventitious roots it decreased considerably. The physiological significance of these changes is discussed.
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Claims 6
Claim · model-written summary
Two month old barley developed adventitious roots from lower nodes.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaret0 - Organ / stage
- two month old plantse0
- Outcome
- grew adventitious roots from the lower nodese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“the two month old plants grew adventitious roots from the lower nodes”
t0“Barley”
Claim · model-written summary
Nitrogen treatment increased root ADH activity about fourfold.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- nitrogen treatmente0
- Gene
- ADHe0
- Outcome
- ADH activitye0
- Direction
- rosee0
- Value
- about 4-folde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ADH activity, calculated on a protein basis, rose about 4-fold during the nitrogen treatment, the greatest increase occurring in the adventitious roots.”
t0“Barley”
Claim · model-written summary
The largest ADH activity increase occurred in adventitious roots.
- Taxon
- barleyHordeum vulgaret0
- Organ / stage
- adventitious rootse0
- Outcome
- increasee0
- Direction
- greatest increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the greatest increase occurring in the adventitious roots”
t0“Barley”
Claim · model-written summary
ADH kinetic properties differed between seminal and adventitious roots during hypoxia.
- Taxon
- barleyHordeum vulgaret0
- Organ / stage
- seminal and adventitious rootse0
- Gene
- ADHe0
- Outcome
- kinetic propertiese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Differences in the kinetic properties of ADH during the hypoxic period were also found between seminal and adventitious roots.”
t0“Barley”
Claim · model-written summary
Acetaldehyde Km changed little in seminal roots during hypoxia.
- Taxon
- barleyHordeum vulgaret0
- Organ / stage
- seminal rootse0
- Treatment
- hypoxic treatmente0
- Outcome
- Km for acetaldehydee0
- Direction
- changed littlee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Km for acetaldehyde changed little in the seminal roots during the hypoxic treatment”
t0“Barley”
Claim · model-written summary
Acetaldehyde Km decreased considerably in adventitious roots during hypoxia.
- Taxon
- barleyHordeum vulgaret0
- Organ / stage
- adventitious rootse0
- Treatment
- hypoxic treatmente1
- Outcome
- acetaldehydee1
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but in the adventitious roots it decreased considerably”
t0“Barley”
e1“The Km for acetaldehyde changed little in the seminal roots during the hypoxic treatment”
The same questions in other papers
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