Dry cultivation and cultivar affect starch synthesis and traits to define rice grain quality in various panicle parts.
Amorphous regions
Chalkiness
Head rice
Retrogradation
Starch granules
Journal
Carbohydrate polymers
ISSN: 1879-1344
Titre abrégé: Carbohydr Polym
Pays: England
ID NLM: 8307156
Informations de publication
Date de publication:
01 Oct 2021
01 Oct 2021
Historique:
received:
29
11
2020
revised:
30
05
2021
accepted:
09
06
2021
entrez:
23
7
2021
pubmed:
24
7
2021
medline:
16
11
2021
Statut:
ppublish
Résumé
A pot experiment was conducted to explore the effects of high-quality (Huanghuazhan, HH), drought-resistant (IR, IRAT109) and drought-susceptible cultivars (ZS, Zhenshan97) under flooding irrigation and dry cultivation (D) on the starch accumulation and synthesis, physicochemical traits of starch granules and rice grain quality at the upper (U) and lower panicle. Under D treatment, IR and ZS had lower rice quality, especially the appearance and cooking quality. DHH-U had the highest appearance, nutritional and cooking quality among all cultivars under D treatment, which could be ascribed to the synthesis of more short-branch chain amylopectin and correspondingly higher starch granule tightness. DHH-U also maintained ordered carbohydrate structure, crystalline regions, and many hydrophilic and hydrophobic functional groups in starch granules before pasting. It could prevent the polymerization of small molecules to avoid the formation of macromolecules after pasting. Overall, these findings may facilitate the improvement of grain quality in rice dry cultivation.
Identifiants
pubmed: 34294346
pii: S0144-8617(21)00723-2
doi: 10.1016/j.carbpol.2021.118336
pii:
doi:
Substances chimiques
Starch
9005-25-8
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
118336Informations de copyright
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