Dual colonization of Eucalyptus urophylla S.T. Blake by arbuscular and ectomycorrhizal fungi affects levels of insect herbivore attack

2005 ◽  
Vol 7 (3) ◽  
pp. 253-263 ◽  
Author(s):  
Alan C. Gange ◽  
Dominic R. J. Gane ◽  
Yinglong Chen ◽  
Mingqin Gong
Keyword(s):  
Ectomycorrhizal Fungi ◽  
Insect Herbivore ◽  
Eucalyptus Urophylla ◽  
Herbivore Attack ◽  
Dual Colonization

Volatile-mediated foraging behaviour of three parasitoid species under conditions of dual insect herbivore attack

2016 ◽  
Vol 111 ◽  
pp. 197-206 ◽  
Author(s):  
Camille Ponzio ◽  
Pasquale Cascone ◽  
Antonino Cusumano ◽  
Berhane T. Weldegergis ◽  
Nina E. Fatouros ◽  
...  
Keyword(s):  
Foraging Behaviour ◽  
Insect Herbivore ◽  
Parasitoid Species ◽  
Herbivore Attack

scholarly journals Insect Elicitors and Exposure to Green Leafy Volatiles Differentially Upregulate Major Octadecanoids and Transcripts of 12-Oxo Phytodienoic Acid Reductases in Zea mays

2007 ◽  
Vol 20 (6) ◽  
pp. 707-716 ◽  
Author(s):  
Jürgen Engelberth ◽  
Irmgard Seidl-Adams ◽  
Jack C. Schultz ◽  
James H. Tumlinson
Keyword(s):  
Zea Mays ◽  
Time Course ◽  
Mechanical Damage ◽  
Insect Herbivore ◽  
Plant Insect Interactions ◽  
Volatile Organic ◽  
Herbivore Attack ◽  
Quantitative Changes ◽  
Insect Interactions ◽  
Defensive Measures

The induction of jasmonic acid (JA) is one of the major signaling events in plants in response to insect herbivore damage and leads to the activation of direct and indirect defensive measures. Green leafy volatiles, which constitute a major portion of volatile organic compounds, often are released in response to insect herbivore attack and have been shown to significantly activate JA production in exposed corn (Zea mays) seedlings, thereby priming these plants specifically against subsequent herbivore attack. To explore the factors determining the specificity of the octadecanoid signaling pathway in corn, we analyzed qualitative and quantitative changes in major octadecanoids. The time course and the amount of induced JA and 12-oxophytodienoic acid levels in corn seedlings were strikingly different after wounding, application of caterpillar regurgitant, or treatment with cis-3-hexenyl acetate (Z-3-6:AC). Exposure to Z-3-6:AC induced accumulation of transcripts encoded by three putative 12-oxophytodienoate10,11-re-ductase genes (ZmOPR1/2, ZmOPR5, and ZmOPR8). Although changes in ZmOPR5 RNAs were detected only after exposure to Z-3-6:AC, ZmOPR1/2 RNAs and ZmOPR8 RNAs also were abundant after treatment with crude regurgitant elicitor or mechanical damage. The physiological implications of these findings in the context of plant-insect interactions are discussed.

scholarly journals Airborne signals prime plants against insect herbivore attack

2004 ◽  
Vol 101 (6) ◽  
pp. 1781-1785 ◽  
Author(s):  
J. Engelberth ◽  
H. T. Alborn ◽  
E. A. Schmelz ◽  
J. H. Tumlinson
Keyword(s):  
Insect Herbivore ◽  
Herbivore Attack

Seleção de bactérias promotoras de crescimento em eucalipto em condições de casa de vegetação

2019 ◽  
Vol 15 (3) ◽  
pp. 224
Author(s):  
Rayka Kristian Alves Santos ◽  
Carmela Amelia Scipioni ◽  
Theilon Henrique De Jesus Macedo ◽  
Carol Chaves Nascimento ◽  
Joelma Da Silva Santos ◽  
...  
Keyword(s):  
Eucalyptus Urophylla

O objetivo deste trabalho foi selecionar em casa de vegetação bactérias que promovam o crescimento de plantas de eucalipto. O experimento foi realizado com o clone AEC 144 de Eucalyptus urophylla, no período de Junho a Agosto de 2016, com duração de 45 dias, tendo como tratamento 14 isolados bacterianos e 1 controle sem inoculação, com 4 repetições e perfazendo 60 parcelas, disposto em delineamento inteiramente casualizado. Foi avaliado a altura das plantas, diâmetro, índice de robustez das mudas e a contagem do número de folhas das plantas. Foi realizado o teste de Skot knott a 5% com as médias dos tratamentos. Os isolados bacterianos nativos de eucalipto UESBJNR32E, UESBJNR6E, UESBJNR5E, UESBJNR3E, UESBJMR6E, UESBJMR21E promovem o crescimento em plantas de eucalipto.

Sign in / Sign up

Export Citation Format

Share Document