scholarly journals Embryological and floral effects attributable to deficiencies following crosses with X-rayed pollen of Lilium regale W.

CYTOLOGIA ◽  
1978 ◽  
Vol 43 (3/4) ◽  
pp. 689-694
Author(s):  
Johanna Elizabeth Phay Poole ◽  
D. T. Morgan. Jr. ◽  
R. D. Rappleye
Keyword(s):  
Author(s):  
Jie Yan ◽  
Wenxiu Guo ◽  
Lanyu Zhou ◽  
Dale Guo ◽  
Jin Pei ◽  
...  
Keyword(s):  

2021 ◽  
Author(s):  
Zie Wang ◽  
Jie Deng ◽  
Tingting Liang ◽  
Linlin Su ◽  
Lilei Zheng ◽  
...  

Abstract Background: WRKY transcription factors (TFs) play vital roles in plant growth and development, secondary metabolite synthesis, and response to biotic and abiotic stresses. In a previous transcriptome sequencing analysis of Lilium regale Wilson, we identified multiple WRKY TFs that respond to exogenous methyl jasmonate treatment and lily Fusarium wilt (Fusarium oxysporum).Results: In the present study, the WRKY TF LrWRKY3 was further analyzed to reveal its function in defense response to F. oxysporum. The LrWRKY3 protein was localized in the plant cell nucleus, and LrWRKY3 transgenic tobacco lines showed higher resistance to F. oxysporum compared with wild-type (WT) tobacco. In addition, some genes related to jasmonic acid (JA) biosynthesis, salicylic acid (SA) signal transduction, and disease resistance had higher transcriptional levels in the LrWRKY3 transgenic tobacco lines than in the WT. On the contrary, L. regale scales transiently expressing LrWRKY3 RNA interference fragments showed higher sensitivity to F. oxysporum infection. Moreover, a F. oxysporum-induced defensin gene, Def1, was isolated from L. regale, and the recombinant protein LrDef1 isolated and purified from Escherichia coli possessed antifungal activity to several phytopathogens, including F. oxysporum. Furthermore, co-expression of LrWRKY3 and the LrDef1 promoter in tobacco evidently up-regulated the expression activity of the LrDef1 promoter.Conclusions: These results clearly indicate that LrWRKY3 is an important positive regulator in response to F. oxysporum infection, and one of its targets is the antimicrobial peptide gene LrDef1.


1990 ◽  
Vol 38 (2) ◽  
pp. 541-543 ◽  
Author(s):  
Yoshihiro MIMAKI ◽  
Yutaka SASHIDA

ChemInform ◽  
2010 ◽  
Vol 29 (7) ◽  
pp. no-no
Author(s):  
A. LINDEN ◽  
P. KUEHNE ◽  
M. HESSE
Keyword(s):  

2003 ◽  
pp. 237-239 ◽  
Author(s):  
V.-P. Pelkonen ◽  
A. Hohtola ◽  
H. Häggman ◽  
K. Laine

Sign in / Sign up

Export Citation Format

Share Document