Induced plant defenses breached? Phytochemical induction protects an herbivore from disease

Oecologia ◽  
1993 ◽  
Vol 94 (2) ◽  
pp. 195-203 ◽  
Author(s):  
Mark D. Hunter ◽  
Jack C. Schultz
Keyword(s):  
Plant Defenses ◽  
Phytochemical Induction

scholarly journals Plant begomoviruses subvert ubiquitination to suppress plant defenses against insect vectors

2019 ◽  
Vol 15 (2) ◽  
pp. e1007607 ◽  
Author(s):  
Ping Li ◽  
Chao Liu ◽  
Wen-Hao Deng ◽  
Dan-Mei Yao ◽  
Li-Long Pan ◽  
...  
Keyword(s):  
Plant Defenses ◽  
Insect Vectors

Removing Plant Defenses

Science ◽  
2004 ◽  
Vol 305 (5684) ◽  
pp. 569d-569d
Keyword(s):  
Plant Defenses

scholarly journals Ectopic Expression of the Rice Lumazine Synthase Gene Contributes to Defense Responses in Transgenic Tobacco

2010 ◽  
Vol 100 (6) ◽  
pp. 573-581 ◽  
Author(s):  
Tingquan Wu ◽  
An Guo ◽  
Yanying Zhao ◽  
Xiaomeng Wang ◽  
Ying Wang ◽  
...  
Keyword(s):  
Jasmonic Acid ◽  
Transgenic Tobacco ◽  
Plant Defenses ◽  
Higher Plants ◽  
Synergistic Effects ◽  
Ectopic Expression ◽  
Defense Responses ◽  
Flavin Mononucleotide ◽  
Lumazine Synthase ◽  
Ethylene Content

Lumazine synthase (LS) catalyzes the penultimate reaction in the multistep riboflavin biosynthesis pathway, which is involved in plant defenses. Plant defenses are often subject to synergistic effects of jasmonic acid and ethylene whereas LS is a regulator of jasmonic acid signal transduction. However, little is known about whether the enzyme contributes to defense responses. To study the role of LS in plant pathogen defenses, we generated transgenic tobacco expressing the rice (Oryza sativa) LS gene, OsLS. OsLS was cloned and found to have strong identity with its homologues in higher plants and less homology to microbial orthologues. The OsLS protein localized to chloroplasts in three OsLS-expressing transgenic tobacco (LSETT) lines characterized as enhanced in growth and defense. Compared with control plants, LSETT had higher content of both riboflavin and the cofactors flavin mononucleotide and flavin adenine dinucleotide. In LSETT, jasmonic acid and ethylene were elevated, the expression of defense-related genes was induced, levels of resistance to pathogens were enhanced, and resistance was effective to viral, bacterial, and oomycete pathogens. Extents of OsLS expression correlated with increases in flavin, jasmonic acid, and ethylene content, and correlated with increases in resistance levels, suggesting a role for OsLS in defense responses.

scholarly journals Remote sensing of future competitors: Impacts on plant defenses

2006 ◽  
Vol 103 (18) ◽  
pp. 7170-7174 ◽  
Author(s):  
M. M. Izaguirre ◽  
C. A. Mazza ◽  
M. Biondini ◽  
I. T. Baldwin ◽  
C. L. Ballare
Keyword(s):  
Remote Sensing ◽  
Plant Defenses
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