Small Signals Lead to Big Changes: The Potential of Peptide-Induced Resistance in Plants

Abstract

The plant immunity system is being revisited more and more and new elements and roles are attributed to participating in the response to biotic stress. The new terminology is also applied in an attempt to identify different players in the whole scenario of immunity: Phytocytokines are one of those elements that are gaining more attention due to the characteristics of processing and perception, showing they are part of a big family of compounds that can amplify the immune response. This review aims to highlight the latest findings on the role of phytocytokines in the whole immune response to biotic stress, including basal and adaptive immunity, and expose the complexity of their action in plant perception and signaling events.

Exogenous systemin peptide treatment in olive alters Bactrocera oleae (Diptera, Tephritidae) oviposition preference

“…However, such role of systemin has been mostly reported in solanaceous species, such as tomato, and under natural environmental conditions (Pastor-Fernández et al 2023). Works focusing on its potential for induced plant resistance against pests and pathogens when applied exogenously are scarce, but with promising results.…”

“…Recent studies have been identifying a number of peptides with a defence signalling function against several biotic stressors in different plant species, such as tomato, potato, Arabidopsis and soybean (Pastor-Fernández et al 2023). These peptides are released upon pest or pathogen attack, and they trigger a cascade of plant defences, increasing plant immune response (Pastor-Fernández et al 2020).…”

Cyclotides: The next generation in biopesticide development for eco‐friendly agriculture

“…Furthermore, they exhibit compatibility with the specific requirements of organic farming. [38][39][40] In contrast to synthetic pesticides, biopesticides are more environmentally friendly and do not harm non-targeted species. Additionally, they can be derived from natural sources that are both cost-effective and sustainable.…”

“…Biological control methods offer appealing solutions for crop protection due to their limited negative impact on human health and the ecosystem. Furthermore, they exhibit compatibility with the specific requirements of organic farming 38–40 . In contrast to synthetic pesticides, biopesticides are more environmentally friendly and do not harm non‐targeted species.…”

Seed Priming With Anabaena Minutissima Extract Ameliorates the Stress Response of Tomato Plantlets to Soilborne Pathogens

“…Additionally, new chitinase genes are transcribed during this time(Gomez et al 2002) Hirano et al (1990). found that treating radish seeds with depolymerized chitosan and its surface triggering all the immune cascade events that lead to the production of defense enzymes such as chitinases and glucanases(Pastor-Fernández et al 2023). An increase in defense enzyme activity has been observed in tomato seedlings from seeds primed with phycobiliproteins from A. minutissima(Righini et al 2023).…”