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Low-Temperature Regulates the Cell Structure and Chlorophyll in Addition to Cellulose Metabolism of Postharvest Red Toona sinensis Buds across Different Seasons.
Zhao, Qian; Wang, Fu; Wang, Yifei; Zhong, Xiulai; Zhu, Shunhua; Zhang, Xinqi; Li, Shuyao; Lei, Xiujuan; Zang, Zhenyuan; Tan, Guofei; Zhang, Jian.
Afiliación
  • Zhao Q; Faculty of Agronomy, Jilin Agricultural University, Changchun 130118, China.
  • Wang F; Faculty of Agronomy, Jilin Agricultural University, Changchun 130118, China.
  • Wang Y; Faculty of Agronomy, Jilin Agricultural University, Changchun 130118, China.
  • Zhong X; Institute of Horticulture, Guizhou Provincial Academy of Agricultural Sciences, Guiyang 550006, China.
  • Zhu S; Institute of Horticulture, Guizhou Provincial Academy of Agricultural Sciences, Guiyang 550006, China.
  • Zhang X; Institute of Horticulture, Guizhou Provincial Academy of Agricultural Sciences, Guiyang 550006, China.
  • Li S; Faculty of Agronomy, Jilin Agricultural University, Changchun 130118, China.
  • Lei X; College of Chinese Medicinal Materials, National and Local Joint Engineering Research Center for Ginseng Breeding and Development, Jilin Agricultural University, Changchun 130118, China.
  • Zang Z; Faculty of Agronomy, Jilin Agricultural University, Changchun 130118, China.
  • Tan G; Faculty of Agronomy, Jilin Agricultural University, Changchun 130118, China.
  • Zhang J; Institute of Horticulture, Guizhou Provincial Academy of Agricultural Sciences, Guiyang 550006, China.
Int J Mol Sci ; 25(14)2024 Jul 14.
Article en En | MEDLINE | ID: mdl-39062962
ABSTRACT
Postharvest fibrosis and greening of Toona sinensis buds significantly affect their quality during storage. This study aimed to clarify the effects of low-temperature storage on postharvest red TSB quality harvested in different seasons. Red TSB samples were collected from Guizhou province, China, 21 days after the beginning of spring (Lichun), summer (Lixia), and autumn (Liqiu), and stored at 4 °C in dark conditions. We compared and analyzed the appearance, microstructure, chlorophyll and cellulose content, and expression levels of related genes across different seasons. The results indicated that TSB harvested in spring had a bright, purple-red color, whereas those harvested in summer and autumn were green. All samples lost water and darkened after 1 day of storage. Severe greening occurred in spring-harvested TSB within 3 days, a phenomenon not observed in summer and autumn samples. Microstructural analysis revealed that the cells in the palisade and spongy tissues of spring and autumn TSB settled closely during storage, while summer TSB cells remained loosely aligned. Xylem cells were smallest in spring-harvested TSB and largest in autumn. Prolonged storage led to thickening of the secondary cell walls and pith cell autolysis in the petioles, enlarging the cavity area. Chlorophyll content was higher in leaves than in petioles, while cellulose content was lower in petioles across all seasons. Both chlorophyll and cellulose content increased with storage time. Gene expression analysis showed season-dependent variations and significant increases in the expression of over half of the chlorophyll-related and cellulose-related genes during refrigeration, correlating with the observed changes in chlorophyll and cellulose content. This research provides valuable insights for improving postharvest storage and freshness preservation strategies for red TSB across different seasons.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Estaciones del Año / Celulosa / Clorofila / Frío País/Región como asunto: Asia Idioma: En Revista: Int J Mol Sci Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Estaciones del Año / Celulosa / Clorofila / Frío País/Región como asunto: Asia Idioma: En Revista: Int J Mol Sci Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza