Abstract
Reactions to water stress were studied on the stripe rust-tolerant wheat cultivars and the typical susceptible cultivars after infection of the pathogen Puccinia striiformis West. The results showed that these stripe rust-tolerant cultivars exhibited tolerance to water stress as well. These cultivars expressed the compatible reaction to pathogen infection under normal water supply conditions, whereas turned to the incompatible reaction to pathogen infection under water stress conditions. Water transpiration in these diseased leaves slightly increased at early stage of infection. However, after then the water transpiration rate, water diffusive resistance, relative water content, and water potential of these diseased leaves gradually turned to the same levels as those of healthy leaves. Additionally, lower osmotic potential and higher turgor potential than those of healthy leaves were also observed in these cultivars, indicating the characteristics of water balance in leaves. In contrast, on the stripe rust susceptible cultivars , the water transpiration rate increased sharply, leaf diffusive resistance, relative water content, water potential, osmotic potential and turgor potential decreased remarkably in diseased leaves under water stress conditions after infection of the pathogen, indication the characteristics of losing of water balance.
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Claims 8
Claim · model-written summary
Stripe rust tolerant cultivars also tolerated water stress.
- Taxon
- wheat
Triticum aestivumt0 - Material
- stripe rust-tolerant cultivarse0
- Outcome
- tolerance to water stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“these stripe rust-tolerant cultivars exhibited tolerance to water stress as well”
Claim · model-written summary
Tolerant cultivars switched from compatible reaction under normal water to incompatible reaction under stress.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- water stress conditionse0
- Outcome
- incompatible reaction to pathogen infectione0
- Comparator
- normal water supply conditionse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“These cultivars expressed the compatible reaction to pathogen infection under normal water supply conditions, whereas turned to the incompatible reaction to pathogen infection under water stress conditions”
Claim · model-written summary
Water transpiration rose slightly early in infected tolerant leaves.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- leavese0
- Outcome
- Water transpiratione0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“Water transpiration in these diseased leaves slightly increased at early stage of infection”
Claim · model-written summary
Later, four water-balance variables in diseased tolerant leaves approached healthy levels.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- water transpiration rate, water diffusive resistance, relative water content, and water potentiale0
- Direction
- same levelse0
- Comparator
- healthy leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“the water transpiration rate, water diffusive resistance, relative water content, and water potential of these diseased leaves gradually turned to the same levels as those of healthy leaves”
Claim · model-written summary
Infected tolerant leaves had lower osmotic potential than healthy leaves.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- osmotic potentiale0
- Direction
- lowere0
- Comparator
- healthy leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“lower osmotic potential and higher turgor potential than those of healthy leaves”
Claim · model-written summary
Infected tolerant leaves had higher turgor potential than healthy leaves.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- turgor potentiale0
- Direction
- highere0
- Comparator
- healthy leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“lower osmotic potential and higher turgor potential than those of healthy leaves”
Claim · model-written summary
In susceptible infected cultivars under water stress, transpiration increased sharply.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- water transpiration ratee0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“the water transpiration rate increased sharply”
Claim · model-written summary
In susceptible infected cultivars, several leaf water-balance measures decreased markedly.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- leavese0
- Outcome
- leaf diffusive resistance, relative water content, water potentiale0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat”
e0“leaf diffusive resistance, relative water content, water potential, osmotic potential and turgor potential decreased remarkably in diseased leaves under water stress conditions”