scholarly journals Plant defence strategies to multi-herbivore attack

2021 ◽  
Author(s):  
Maite Fernández de Bobadilla
Keyword(s):  
Plant Defence ◽  
Herbivore Attack ◽  
Defence Strategies

scholarly journals Parents lend a helping hand to their offspring in plant defence

2012 ◽  
Vol 8 (5) ◽  
pp. 871-873 ◽  
Author(s):  
Dale R. Walters ◽  
Linda Paterson
Keyword(s):  
Biotic Stress ◽  
Structural Changes ◽  
Plant Defence ◽  
Chemical Defence ◽  
Inducible Defences ◽  
Subsequent Growth ◽  
Transgenerational Effects ◽  
Enhanced Resistance ◽  
Herbivore Attack ◽  
Resistance To Infection

Plants under attack by pathogens and pests can mount a range of inducible defences, encompassing both chemical and structural changes. Although few reports exist, it appears that plants responding to pathogen or herbivore attack, or chemical defence elicitors, may produce progeny that are better able to defend themselves against attack, compared with progeny from unthreatened or untreated plants. To date, all research on transgenerational effects of biotic stress has been conducted on dicotyledenous plants. We examined the possibility that resistance induced by application of chemical defence elicitors to the monocot plant barley, could be passed on to the progeny. Plants were treated with acibenzolar-S-methyl (ASM) or saccharin, and grain harvested at maturity. Germination was unaffected in seed collected from plants treated with saccharin, while germination was reduced significantly in seed collected from ASM-treated plants. The subsequent growth of the seedlings was not significantly different in any of the treatments. However, plants from parents treated with both ASM or saccharin exhibited significantly enhanced resistance to infection by Rhynchosporium commune, despite not being treated with elicitor themselves. These data hint at the possibility of producing disease-resistant plants by exposing parent plants to chemical elicitors.

scholarly journals Variation in insect herbivore communities on individual plants reveals phylogenetic signal in uncertainty of attack in Brassicaceae

2020 ◽  
Author(s):  
Daan Mertens ◽  
Klaas Bouwmeester ◽  
Erik H. Poelman
Keyword(s):  
Plant Species ◽  
Phylogenetic Signal ◽  
Plant Defence ◽  
Insect Herbivore ◽  
Plant Defences ◽  
Herbivore Species ◽  
Phylogenetic Lineages ◽  
Defence Strategies ◽  
Herbivore Communities ◽  
Antagonistic Interactions

AbstractAs a result of co-evolution between plants and herbivores, related plants often interact with similar communities of herbivores. On individual plants, typically only a subset of interactions is realized. The stochasticity of realized interactions leads to uncertainty of attack on individual plants and is likely to determine adaptiveness of plant defence strategies. Here, we show that across 12 plant species in two phylogenetic lineages of the Brassicaceae, variation in realized herbivore communities reveals a phylogenetic signal in the uncertainty of attack on individual plants. Individual plants of Brassicaceae Lineage II were attacked by a larger number of herbivore species from a larger species pool, resulting in a higher uncertainty of realized antagonistic interactions compared to plants in Lineage I. We argue that uncertainty of attack in terms of realized interactions on individual plants is ecologically relevant and must therefore be considered in the evolution of plant defences.

scholarly journals Ecological interactions shape the adaptive value of plant defence: Herbivore attack versus competition for light

2018 ◽  
Vol 33 (1) ◽  
pp. 129-138 ◽  
Author(s):  
Jorad Vries ◽  
Jochem B. Evers ◽  
Marcel Dicke ◽  
Erik H. Poelman
Keyword(s):  
Plant Defence ◽  
Ecological Interactions ◽  
Adaptive Value ◽  
Herbivore Attack ◽  
Competition For Light

Microbial elicitors of plant defence responses activate transcription of a retrotransposon

1994 ◽  
Vol 5 (4) ◽  
pp. 535-542 ◽  
Author(s):  
Sylvie Pouteau ◽  
Marie-Angele Grandbastien ◽  
Martine Boccara
Keyword(s):  
Plant Defence ◽  
Defence Responses ◽  
Plant Defence Responses
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