What question did this study set out to answer?

To determine how C4 photosynthesis functions under waterlogged, nutrient-rich conditions by examining the physiology and gene expression of the rice weed Echinochloa glabrescens.

November 2, 2015PLANT PHYSIOLOGYOpen Access

C4 Photosynthesis in the Rice Paddy: Insights from the Noxious Weed Echinochloa glabrescens

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Authors

SCSarah CovshoffUniversity of Cambridge MSMarek SzecówkaCzech Academy of Sciences, Institute of Experimental Botany THThomas E. HughesNational Institutes of Health

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Implication

Comparative transcriptomic analysis reveals conserved C4 photosynthetic pathways and wetland adaptations in Echinochloa glabrescens, highlighting evolutionary mechanisms for crop improvement.

Key Points

To determine how C4 photosynthesis functions under waterlogged, nutrient-rich conditions by examining the physiology and gene expression of the rice weed Echinochloa glabrescens.
Generated comprehensive transcriptome datasets comparing C4 E. glabrescens and C3 rice (Oryza sativa).
Characterized leaf anatomy and quantified chloroplastic phosphoenolpyruvate carboxylase accumulation in E. glabrescens, rice, Setaria italica, and Brachypodium distachyon.
Leaves of E. glabrescens exhibited classical Kranz anatomy with lightly lobed mesophyll cells and accumulated chloroplastic phosphoenolpyruvate carboxylase, though in lower abundance than in rice.
The molecular signature of C4 photosynthesis in waterlogged, nutrient-replete conditions closely matched the signatures previously established in arid-adapted C4 species.
Identified a specific cohort of genes that experienced a selective sweep linked to adaptation and survival in flooded paddy conditions.

Cite This Study

Covshoff et al. (2015) studied this question.

synapsesocial.com/papers/6a887538951efdbb75f4cdb1 https://doi.org/10.1104/pp.15.00889

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Implication

Comparative transcriptomic analysis reveals conserved C4 photosynthetic pathways and wetland adaptations in Echinochloa glabrescens, highlighting evolutionary mechanisms for crop improvement.

C4 Photosynthesis in the Rice Paddy: Insights from the Noxious Weed Echinochloa glabrescens

Discussion

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Implication

Key Points

Cite This Study

C4 Photosynthesis in the Rice Paddy: Insights from the Noxious Weed Echinochloa glabrescens

Discussion

Member takes

Implication

Key Points

Cite This Study

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