Progressive drought alters architectural and anatomical traits of rice roots

@article{Hazman2018ProgressiveDA,
  title={Progressive drought alters architectural and anatomical traits of rice roots},
  author={Mohamed Hazman and Kathleen M. Brown},
  journal={Rice},
  year={2018},
  volume={11}
}
BackgroundRoot architectural and anatomical phenotypes are important for adaptation to drought. Many rice-growing regions face increasing water scarcity. This study describes drought responses of 11 Egyptian rice cultivars with emphasis on plastic root responses that may enhance drought adaptation.ResultsEleven Egyptian rice cultivars were phenotyped for root architectural and anatomical traits after 6 weeks growth in soil mesocosms under well-watered conditions. Four of these cultivars were… 
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Combining information from phenotypic traits, genetic diversity analysis, and QTL analysis was very useful in identifying the true drought-tolerant rice genotypes that can be used for crossing in the future breeding program.
Targeted mutation of transcription factor genes alters metaxylem vessel size and number in rice roots
TLDR
Though these candidate gene mutants did not exhibit large phenotypic effects, the identification and investigation of candidate genes related to metaxylem traits in rice deepen the understanding of metaxylesm development and are needed to facilitate incorporation of favorable alleles into breeding populations to improve drought stress tolerance.
A functional-structural model of upland rice root systems reveals the importance of laterals and growing root tips for phosphate uptake from wet and dry soils.
TLDR
This functional-structural model can predict the function of specific rice roots in terms of P and water uptake under different P andWater supplies, when the structure of the root system is known.
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