Changes in the quality parameters, bioactive compounds and volatiles of two table grape varieties (Vitis vinifera L. cv Muscat de Hambourg and Alphonse Lavallée) during storage

2019 ◽  
Vol 245 (4) ◽  
pp. 951-961 ◽  
Author(s):  
Christophe Aubert ◽  
Guillaume Chalot ◽  
Valentine Cottet
Author(s):  
Fikadu Kumsa

Grape (Vitis vinifera L.) is globally cultivated as commercial fruit crop usually used for fruit purpose or industrial product. The objective of the current review is to review and identify the research gap on the effect of different growth media and vitrification on shooting and rooting performance of grape. Factors affecting rooting of grape cuttings can be internal or external factors. Currently, grapevines are very sensitive to disease in the conventional method of propagation. Even if tissue culture is recommended for healthy propagation of the grape varieties, still factors affecting the growth of the plant verifications were reported. This, review paper progressively revised for the existing factors and possible solutions during in vitro propagation of grapevines. Int. J. Agril. Res. Innov. Tech. 10(1): 1-5, June 2020


Agronomy ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1176
Author(s):  
Jana Žiarovská ◽  
Lucia Zamiešková ◽  
Jana Bilčíková ◽  
Veronika Fialková ◽  
Jozef Sabo ◽  
...  

The aim of this study was to compare the natural variability of the expression of class I chitinase gene in grapes of Vitis vinifera L. varieties as well as investigate their antimicrobial activity. Further, the effect of antimicrobial activity in chitinase expression was analyzed. Matured berries of thirteen grape varieties were used in the study—Alibernet, Dornfelder, Cabernet Sauvignon, Blaufränkisch, Sauvignon Blanc, Welschriesling, Weisser Riesling, Irsai Oliver, Pinot Blanc, Pálava, Müller-Thurgau, Grűner Veltliner, and Feteasca Regala, grown in the Small Carpathians wine region of Slovakia, Vrbové. Chitinase I gene expression was found to be similar in most of the analyzed varieties with the except of two varieties, where the expression of chitinase I was significantly higher—Pinot Blanc and Savignon Blanc. By comparing the varieties between the lowest and highest expression fold change, they were statistically different in the level of its chitinase I gene expression. Grape pomace extracts of analyzed Vitis vinifera L. were effective against Gram-positive, Gram-negative bacteria and yeasts, but a weak correlation tendency was found between chitinase I gene expression and antimicrobial activity, only against Staphylococcus aureus subsp. aureus, Candida albicans, and Candida glabrata.


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