scholarly journals Green Leaf Volatile Confers Management of Late Blight Disease: A Green Vaccination in Potato

2021 ◽  
Vol 7 (4) ◽  
pp. 312
Author(s):  
Neda Najdabbasi ◽  
Seyed Mahyar Mirmajlessi ◽  
Kevin Dewitte ◽  
Maarten Ameye ◽  
Marika Mänd ◽  
...  
Keyword(s):  
Late Blight ◽  
Plant Pathogens ◽  
Solanum Tuberosum L ◽  
Crop Protection ◽  
Green Leaf Volatiles ◽  
Qualitative Assessment ◽  
Green Leaf ◽  
Leaf Volatiles ◽  
Potato Plants

Yield losses of crops due to plant pathogens are a major threat in all agricultural systems. In view of environmental issues and legislative limitations for chemical crop protection products, the need to design new environmentally friendly disease management strategies has gained interest. Despite the unique capability of green leaf volatiles (GLVs) to suppress a broad spectrum of plant pathogens, their capacity to control the potato late-blight-causing agent Phytophthora infestans has not been well studied. This study addresses the potential role of the GLV Z-3-hexenyl acetate (Z-3-HAC) in decreasing the severity of late blight and the underlying gene-based evidence leading to this effect. Nine-week-old potato plants (Solanum tuberosum L.) were exposed to Z-3-HAC before they were inoculated with P. infestans genotypes at different time points. These pre-exposed potato plants exhibited slower disease development after infection with the highly pathogenic genotype of P. infestans (EU-13-A2) over time. Qualitative assessment showed that the exposed, infected plants possessed significantly lower sporulation intensity and disease severity compared to the control plants. Hypersensitive response (HR)-like symptoms were observed on the treated leaves when inoculated with different pathogen genotypes. No HR-like lesions were detected on the untreated leaves after infection. It was shown that the transcript levels of several defense-related genes, especially those that are involved in reactive oxygen species (ROS) production pathways were significantly expressed in plants at 48 and 72 h postexposure to the Z-3-HAC. The current work provides evidence on the role of Z-3-HAC in the increased protection of potato plants against late blight through plant immunity and offers new opportunities for the sustainable control of potato diseases.

Review of recent advances on the production and eco-physiological roles of green leaf volatiles

2013 ◽  
Vol 37 (3) ◽  
pp. 268-275
Author(s):  
Hai-Feng SUN ◽  
Zhen-Yu LI ◽  
Bin WU ◽  
Xue-Mei QIN
Keyword(s):  
Green Leaf Volatiles ◽  
Green Leaf ◽  
Leaf Volatiles ◽  
Recent Advances

scholarly journals Verbenone and Green-Leaf Volatiles Reduce Whitebark Pine Mortality in a Northern Range-Expanding Mountain Pine Beetle Outbreak

2021 ◽  
Author(s):  
Etienne Cardinal ◽  
Brenda Shepherd ◽  
Jodie Krakowski ◽  
Carl James Schwarz ◽  
John Stirrett-Wood
Keyword(s):  
Mountain Pine Beetle ◽  
Green Leaf Volatiles ◽  
Green Leaf ◽  
Whitebark Pine ◽  
White Pine Blister Rust ◽  
Leaf Volatiles ◽  
Disease Resistant ◽  
Mountain Pine ◽  
Pine Beetle ◽  
Pine Trees

This is the first study testing effectiveness of semiochemical treatments to protect individual trees from a range-expanding mountain pine beetle (MPB, Dendroctonus ponderosae Hopkins) attack into newly exposed host populations of endangered whitebark pine (Pinus albicaulis Engelmann). We investigated the effectiveness of a combination of verbenone and Green-Leaf Volatiles (GLV) to protect rare and valuable disease-resistant trees during a MPB epidemic from 2015 to 2018 in Jasper National Park, Canada. Treatments reduced the proportion of trees attacked by MPB for all diameter classes, across all stands, from 46 to 60%. We also evaluated the effect of the exotic disease white pine blister rust (caused by the fungus Cronartium ribicola J.C. Fisch), the species’ other main regional threat. MPB were less likely to attack large, rust infected trees than healthy trees, emphasizing the value of the semiochemical treatment. Protecting large, cone-bearing disease-resistant whitebark pine trees is fundamental to whitebark pine recovery. Maintaining reproductive trees on the landscape increases the frequency and diversity of rust-resistant genotypes more effectively than just planting seedlings to replace MPB-killed trees, because this slow-growing species takes over 80 years to reproduce. Our study confirmed protecting large rust-resistant trees with verbenone and GLV is a proactive and effective treatment against MPB for whitebark pine in naïve populations.

scholarly journals Etude Des Effets Des Régulateurs De Croissance Sur La Les Stades De Prolifération Et De Développement De La Pomme De Terre (Solanum Tuberosum. L) In Vitro

2017 ◽  
Vol 13 (24) ◽  
pp. 145
Author(s):  
Sadek Chahredine ◽  
Nadia Ykhlef
Keyword(s):  
Solanum Tuberosum ◽  
Callus Induction ◽  
Solanum Tuberosum L ◽  
Naphthaleneacetic Acid ◽  
Compact Structure ◽  
Potato Plants ◽  
Régulateurs De Croissance ◽  
Role Of Light

The aim of this study is to determine the effects of different concentrations and combinations of the phytohormones, 1-naphthaleneacetic acid (NAA), and 6-benzylaminopurine (BAP): M1 (0.5 mg / l +1 mg / l), M2 (1 mg / l + 0.5 mg / l) , M3 (2 mg / l +2 mg / l), M4 (0.5 mg / l + l mg / l, NAA), M5 (1.0 mg / l + l mg / l , NAA), and M6 (2.0 mg / l + l mg / l, NAA). This study was carried out in dark condition on callus induction of potato plants (Solanum tuberosum L.) cultivars from potato tuber bud so as to demonstrate the role of light. The callus initiation begins after 7 days of incubation for all studied media. After two months of incubation, the better development of callus was noted in Spunta variety by using medium M1, M2, M3, and M6. The calluses took a compact structure of brown-white color for both varieties with a callus induction rate of 20- 40%. This was collected with kondor variety for M2 and (M3, M4, M5) media respectively and 10-30% for M4 (M1, M2, M3) for Spunta variety also. The highest fresh weight was recorded on M2 medium with 0.26g for Kondor variety and 0.93g for Spunta variety.

Electroanalytical studies on green leaf volatiles for potential sensor development

The Analyst ◽  
2012 ◽  
Vol 137 (13) ◽  
pp. 3138 ◽  
Author(s):  
Yogeswaran Umasankar ◽  
Glen C. Rains ◽  
Ramaraja P. Ramasamy
Keyword(s):  
Green Leaf Volatiles ◽  
Green Leaf ◽  
Leaf Volatiles ◽  
Sensor Development

scholarly journals Relative contribution of LOX10, green leaf volatiles and JA to wound-induced local and systemic oxylipin and hormone signature in Zea mays (maize)

2020 ◽  
Vol 174 ◽  
pp. 112334 ◽  
Author(s):  
Yongming He ◽  
Eli J. Borrego ◽  
Zachary Gorman ◽  
Pei-Cheng Huang ◽  
Michael V. Kolomiets
Keyword(s):  
Zea Mays ◽  
Green Leaf Volatiles ◽  
Green Leaf ◽  
Leaf Volatiles ◽  
Relative Contribution
Sign in / Sign up

Export Citation Format

Share Document