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Experimental evidence that root-associated fungi improve plant growth at high altitude

ABSTRACT: Experimental evidence that root-associated fungi improve plant growth at high altitude

PROVIDER: PRJEB65743 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR12917400_1.fastq.gz	Fastqsanger.gz
	ERR12917400_2.fastq.gz	Fastqsanger.gz
	ERR12917500_1.fastq.gz	Fastqsanger.gz
	ERR12917500_2.fastq.gz	Fastqsanger.gz
	ERR12917401_1.fastq.gz	Fastqsanger.gz

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Gene expression profiling under exposure to high altitude hypoxic environment

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Decoding altitude – activated regulatory mechanisms underlining apple peel coloration and ripening

Project description:Apple (Malus domestica Borkh) is an important fruit crop cultivated in a broad range of environmental conditions. Apple fruit, and specifically peel tissue, ripening is a physiological process whose molecular regulatory networks response to different environments are still not sufficiently investigated. In this study, the influence of low (20 m) and high (750 m) altitude environmental conditions in peel tissue was assessed by physiological measurements combined with global metabolite and protein expression profiling during apple fruit development and ripening. Although apple fruit ripening was unaffected by the different environmental conditions, however several key color parameters, such as redness and the color percentage index, were induced by high altitude. Consistent with this, increased level of anthocyanin and other phenolic compounds, including cyanidin-3-O-galactoside, quercetin-3-O-rhamnoside, quercetin-3-O-rutinoside and chlorogenic acid were identified in apple peel at high altitude. Also, high altitude environment, particularly, at the ripening period, up-accumulated various carbohydrates (eg., arabinose, xylose and sucrose) while repressed glutamic acid and several related proteins such as glycine hydroxymethyltransferase and glutamate–glyoxylate aminotransferase. Other processes affected by high altitude concerned the TCA cycle, the synthesis of oxidative/defense enzymes, and the accumulation of photosynthetic proteins. Finally, we constructed a metabolite-protein network depicting the impact of altitude on peel ripening. These data provide insights into physiological processes linked to apple peel ripening across different climatic conditions and will assist in efforts to improve apple fruit appeal and quality.

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