Abstract
Nitrogen deficiency is a key constraint on crop yield. Cassava, the world's sixth-largest food crop and a crucial source of feed and industrial materials, can thrive in marginal soils, yet its yield is still significantly affected by limited nitrogen availability. Investigating cassava's response mechanisms to nitrogen scarcity is therefore essential for advancing molecular breeding and identifying nitrogen-efficient varieties. This research undertook a comprehensive analysis of cassava seedlings' physiological, gene expression, and metabolite responses under low nitrogen stress. Findings revealed that nitrogen deficiency drastically suppressed seedling growth, significantly reduced nitrate and ammonium transport to aerial parts, and led to a marked increase in carbohydrate, reactive oxygen species, and ammonium ion levels in the leaves. Transcriptomic and metabolomic analyses further demonstrated notable alterations in genes and metabolites linked to carbon and nitrogen metabolism, flavonoid biosynthesis, and the purine metabolic pathway. Additionally, several transcription factors associated with cassava flavonoid biosynthesis under nitrogen-deficient conditions were identified. Overall, this study offers fresh insights and valuable genetic resources for unraveling cassava's adaptive mechanisms to nitrogen deprivation.
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Claims 5
Claim · model-written summary
Nitrogen deficiency drastically suppressed cassava seedling growth.
- Taxon
- cassava
Manihot esculentat0 - Treatment
- nitrogen deficiencye0
- Outcome
- seedling growthe0
- Direction
- drastically suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Integrated transcriptomics and metabolomics analyses provide new insights into cassava in response to nitrogen deficiency”
e0“Findings revealed that nitrogen deficiency drastically suppressed seedling growth, significantly reduced nitrate and ammonium transport to aerial parts, and led to a marked increase in carbohydrate, reactive oxygen species, and ammonium ion levels in the leaves”
Claim · model-written summary
Nitrogen deficiency significantly reduced nitrate and ammonium transport to the aerial parts of cassava.
- Taxon
- cassavaManihot esculentat0
- Treatment
- nitrogen deficiencye0
- Outcome
- nitrate and ammonium transport to aerial partse0
- Direction
- significantly reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Integrated transcriptomics and metabolomics analyses provide new insights into cassava in response to nitrogen deficiency”
e0“Findings revealed that nitrogen deficiency drastically suppressed seedling growth, significantly reduced nitrate and ammonium transport to aerial parts, and led to a marked increase in carbohydrate, reactive oxygen species, and ammonium ion levels in the leaves”
Claim · model-written summary
Nitrogen deficiency markedly increased carbohydrate, reactive oxygen species and ammonium ion levels in cassava leaves.
- Taxon
- cassavaManihot esculentat0
- Organ / stage
- leavese0
- Treatment
- nitrogen deficiencye0
- Outcome
- carbohydrate, reactive oxygen species, and ammonium ion levelse0
- Direction
- marked increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Integrated transcriptomics and metabolomics analyses provide new insights into cassava in response to nitrogen deficiency”
e0“Findings revealed that nitrogen deficiency drastically suppressed seedling growth, significantly reduced nitrate and ammonium transport to aerial parts, and led to a marked increase in carbohydrate, reactive oxygen species, and ammonium ion levels in the leaves”
Claim · model-written summary
Nitrogen deficiency notably altered genes and metabolites linked to carbon and nitrogen metabolism, flavonoid biosynthesis and the purine metabolic pathway in cassava.
- Taxon
- cassavaManihot esculentat0
- Outcome
- genes and metabolitese1
- Direction
- notable alterationse1
- Qualifier
- linked to carbon and nitrogen metabolism, flavonoid biosynthesis, and the purine metabolic pathwaye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Integrated transcriptomics and metabolomics analyses provide new insights into cassava in response to nitrogen deficiency”
e1“Transcriptomic and metabolomic analyses further demonstrated notable alterations in genes and metabolites linked to carbon and nitrogen metabolism, flavonoid biosynthesis, and the purine metabolic pathway”
Claim · model-written summary
Several transcription factors associated with cassava flavonoid biosynthesis under nitrogen deficiency were identified.
- Taxon
- cassavaManihot esculentat0
- Outcome
- transcription factorse2
- Qualifier
- associated with cassava flavonoid biosynthesis under nitrogen-deficient conditionse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Integrated transcriptomics and metabolomics analyses provide new insights into cassava in response to nitrogen deficiency”
e2“several transcription factors associated with cassava flavonoid biosynthesis under nitrogen-deficient conditions were identified”
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See all 5 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.