Abstract
Hypoxia as a stress condition occurs due to a decrease in the availability of oxygen in the environment as a result of natural waterlogging of soils or suboptimal watering. In laboratory conditions, when growing plants in hydroponics, hypoxia was modeled by stopping the aeration of the nutrient solution, which led to a rapid decrease of oxygen concentration in it. Under these conditions was observed, the formation of aerenchyma, through which oxygen can penetrate the roots from the shoot. In addition, the luminescence of berberine complexes with lignin and suberin in the cell membranes of the outer layers of the cortex increased, which indicates the beginning of the formation of apoplastic barriers in this area, which in turn can reduce the diffusion of oxygen into the solution on the way of its transport to the apical part of the root along aerenchyma. In the morphological features the most striking was the decrease in the length of the root under hypoxic conditions, which reduses the path of oxygen transport from the shoot to the root tips. However, the decrease in the rate of shoot growth and photosynthesis under the influence of hypoxia was insignificant, which confirms the adaptive significance of the aerenchyma and apoplast barriers formation that provide oxygen supply to the roots.
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Claims 4
Claim · model-written summary
Hypoxia induced aerenchyma formation in wheat roots under laboratory hydroponic conditions.
- Taxon
- wheat
Triticum aestivumt0 - Organ / stage
- rootse1
- Treatment
- hypoxiae0
- Outcome
- formation of aerenchymae1
- Setting
- laboratory conditionse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GROWTH OF WHEAT PLANTS”
e0“In laboratory conditions, when growing plants in hydroponics, hypoxia was modeled by stopping the aeration of the nutrient solution, which led to a rapid decrease of oxygen concentration in it”
e1“Under these conditions was observed, the formation of aerenchyma, through which oxygen can penetrate the roots from the shoot”
Claim · model-written summary
Hypoxia increased the luminescence of berberine complexes with lignin and suberin in the outer cortex of wheat roots.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- outer layers of the cortexe2
- Treatment
- hypoxiae0
- Outcome
- luminescence of berberine complexes with lignin and suberine2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GROWTH OF WHEAT PLANTS”
e0“In laboratory conditions, when growing plants in hydroponics, hypoxia was modeled by stopping the aeration of the nutrient solution, which led to a rapid decrease of oxygen concentration in it”
e2“the luminescence of berberine complexes with lignin and suberin in the cell membranes of the outer layers of the cortex increased”
Claim · model-written summary
Hypoxia decreased wheat root length.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- roote3
- Treatment
- hypoxic conditionse3
- Outcome
- length of the roote3
- Direction
- decreasee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GROWTH OF WHEAT PLANTS”
e3“the decrease in the length of the root under hypoxic conditions”
Claim · model-written summary
Hypoxia decreased shoot growth rate and photosynthesis of wheat only insignificantly.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- hypoxiae4
- Outcome
- the rate of shoot growth and photosynthesise4
- Direction
- decreasee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“GROWTH OF WHEAT PLANTS”
e4“the decrease in the rate of shoot growth and photosynthesis under the influence of hypoxia was insignificant”
The same questions in other papers
flooding · physiology: photosynthesis · Triticum aestivum (wheat)Results differ
36 papers in the same direction as this paper · 7 in the opposite direction
- positive
- positive
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See all 44 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.