NDLI: Potato leafroll virus (PLRV) and Potato virus Y (PVY) influence vegetative growth, physiological metabolism, and microtuber production of in vitro-grown shoots of potato (Solanum tuberosum L.)

Content Provider	Springer Nature Link
Author	Li, Jing Wei Wang, Biao Song, Xiao Ming Wang, Ren Rui Chen, Long Zhang, Hao Zhang, Zhi Bo Wang, Qiao Chun
Copyright Year	2013
Abstract	Effects of Potato leafroll virus (PLRV) and Potato virus Y (PVY) on vegetative growth, physiological metabolism and microtuber production were investigated using in vitro shoot cultures. The results showed that parameters of shoot growth including bud break percentage, shoot length, and node number and length were markedly reduced in the diseased shoots. These negative effects were much more pronounced in shoots co-infected with PLRV and PVY than in those singly infected with either PLRV or PVY. The inhibitive effects on root developments measured by root number and length were observed only in shoots co-infected with PLRV and PVY. Significantly lower contents of chl-a, chl-b and total chl were found in virus infected shoots than in healthy ones. There were striking differences in contents of total soluble protein observed between healthy shoots and PLVR and PVY co-infected ones. The content of total soluble sugar was highest in shoots co-infected with PLRV and PVY, and lowest in healthy shoots. Furthermore, there were no significant differences found in the level of endogenous indole-acetic acid among healthy shoots verses virus infected shoots. However, the level of zeatin-ribosome was much higher in healthy shoots than in virus infected ones. Yet, both healthy and single PLRV infected shoots produced similar levels of gibberillic acid 3, which were much higher than those of PVY single-infected shoots and PLRV and PVY co-infected shoots. Also, there were no significant differences in the number of microtubers among healthy shoots, PLVR single or PVY single infected shoots, but shoots co-infected with PLRV and PVY produced the lowest number of microtubers. Overall, the healthy shoots produced the largest size of microtubers and the highest percentage of microtubers ≥5 mm in diameter.
Starting Page	313
Ending Page	324
Page Count	12
File Format	PDF
ISSN	01676857
Journal	Plant Cell, Tissue and Organ Culture (PCTOC)
Volume Number	114
Issue Number	3
e-ISSN	15735044
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-05-16
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	In vitro culture Micropropagation Microtuber Endogenous hormone Physiological metabolism Potato leafroll virus Potato virus Y Solanum Plant Sciences Plant Physiology Plant Genetics & Genomics Plant Pathology
Content Type	Text
Resource Type	Article
Subject	Horticulture

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