Abstract
Cerasus humilis fruit is known for its high acidity, surpassing that of most other fruits. The metabolism of organic acids in these fruits significantly influences sugar and calcium accumulation. However, research on this metabolic process is limited. This study investigates the organic acid metabolism and the accumulation patterns of sugars and calcium during the development of Cerasus humilis fruits. Using low−acid and high−acid varieties from Inner Mongolia, we compared organic acid components and the activity of relevant metabolic enzymes during fruit maturation. We also measured the content and proportions of various sugars and calcium forms, performing correlation analyses. Throughout the development and ripening of Cerasus humilis fruits, organic acids, sugars, and calcium exhibited consistent patterns of change across the two acidity types. Malic acid emerged as the most significant organic acid, while fructose was the primary sugar, and active calcium was the dominant calcium component. Correlation analyses indicated that malic acid and total acid positively correlated with sugar and water−soluble calcium content, negatively regulating other calcium forms. Conversely, NADP−ME, citric acid, and oxalic acid negatively correlated with sugars and water−soluble calcium, while positively affecting other calcium forms. In conclusion, the metabolism of organic acids during the development and maturation of Cerasus humilis fruits is closely linked to the accumulation of sugars and calcium. Malic acid, primarily regulated by NAD−MDH and NADP−ME, promotes the accumulation of sugars and water−soluble calcium but inhibits other calcium forms, while citric and oxalic acids inhibit sugar accumulation and promote non−water−soluble calcium forms.
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Claims 10
Claim · model-written summary
Organic acids, sugars, and calcium followed consistent developmental patterns across acidity types.
- Taxon
- Cerasus humilis
Prunus humilist0 - Outcome
- organic acids, sugars, and calcium exhibited consistent patterns of changee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“organic acids, sugars, and calcium exhibited consistent patterns of change across the two acidity types”
t0“Cerasus humilis”
Claim · model-written summary
Malic acid was the most significant organic acid.
- Taxon
- Cerasus humilisPrunus humilist0
- Outcome
- Malic acid emerged as the most significant organic acide0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Malic acid emerged as the most significant organic acid”
t0“Cerasus humilis”
Claim · model-written summary
Fructose was the primary sugar.
- Taxon
- Cerasus humilisPrunus humilist0
- Outcome
- fructose was the primary sugare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fructose was the primary sugar”
t0“Cerasus humilis”
Claim · model-written summary
Active calcium was the dominant calcium component.
- Taxon
- Cerasus humilisPrunus humilist0
- Outcome
- active calcium was the dominant calcium componente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“active calcium was the dominant calcium component”
t0“Cerasus humilis”
Claim · model-written summary
Malic acid and total acid correlated positively with sugar and soluble calcium.
- Taxon
- Cerasus humilisPrunus humilist0
- Compound
- malic acid and total acide0
- Outcome
- sugar and water−soluble calcium contente0
- Direction
- positively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“malic acid and total acid positively correlated with sugar and water−soluble calcium content”
t0“Cerasus humilis”
Claim · model-written summary
Malic acid and total acid were negatively linked to other calcium forms.
- Taxon
- Cerasus humilisPrunus humilist0
- Compound
- malic acid and total acidt1
- Outcome
- other calcium formse0
- Direction
- negativelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“negatively regulating other calcium forms”
t0“Cerasus humilis”
t1“malic acid and total acid”
Claim · model-written summary
NADP−ME, citric acid, and oxalic acid correlated negatively with sugars and soluble calcium.
- Taxon
- Cerasus humilisPrunus humilist0
- Gene
- NADP−MEe0
- Compound
- citric acid, and oxalic acide0
- Outcome
- sugars and water−soluble calciume0
- Direction
- negatively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NADP−ME, citric acid, and oxalic acid negatively correlated with sugars and water−soluble calcium”
t0“Cerasus humilis”
Claim · model-written summary
NADP−ME, citric acid, and oxalic acid were positively linked to other calcium forms.
- Taxon
- Cerasus humilisPrunus humilist0
- Gene
- NADP−MEt1
- Outcome
- other calcium formse0
- Direction
- positivelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while positively affecting other calcium forms”
t0“Cerasus humilis”
t1“Conversely, NADP−ME, citric acid, and oxalic acid”
Claim · model-written summary
The authors infer malic acid promotes sugar and soluble calcium accumulation but inhibits other calcium forms.
- Taxon
- Cerasus humilisPrunus humilist0
- Gene
- NAD−MDH and NADP−MEe0
- Compound
- Malic acide0
- Outcome
- accumulation of sugars and water−soluble calciume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Malic acid, primarily regulated by NAD−MDH and NADP−ME, promotes the accumulation of sugars and water−soluble calcium but inhibits other calcium forms”
t0“Cerasus humilis”
Claim · model-written summary
The authors infer citric and oxalic acids inhibit sugar accumulation and promote insoluble calcium.
- Taxon
- Cerasus humilisPrunus humilist0
- Compound
- citric and oxalic acidse0
- Outcome
- sugar accumulation and promote non−water−soluble calcium formse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“citric and oxalic acids inhibit sugar accumulation and promote non−water−soluble calcium forms”
t0“Cerasus humilis”