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Antimicrobial peptides of the genus Capsicum: a mini review
Oliveira Arielle Pinheiro Bessiatti Fava,Resende Larissa Maximiano,Rodrigues Rosana,de Oliveira Mello Érica,Taveira Gabriel Bonan,de Oliveira Carvalho André,Gomes Valdirene Moreira 한국원예학회 2022 Horticulture, Environment, and Biotechnology Vol.63 No.4
Antimicrobial peptides (AMPs) have been characterized in various organs and plant species. However, few studies have investigated AMPs in the genus Capsicum , especially their biological activities and mechanism of action. AMPs are small proteins isolated primarily from plants and animals. AMPs are of great interest to researchers because of their potent antimicrobial activity due to their ability to interact with cell membranes. While some AMPs participate in innate immune response by providing a rapid line of defense against infection, others may bolster plant defense against certain pests and pathogens. The genus Capsicum contains a myriad of AMPs involved in plant defense with the potential for new antimicrobial molecules. In recent years, our group and others have isolated and characterized AMPs from seeds, fruits, leaves and roots of Capsicum plants. Herein, we describe the diff erent AMP families, like defensins, lipid transfer proteins (LTPs), thionins, proteinase inhibitors, and others, present in the genus Capsicum . We also discuss the current knowledge of their antimicrobial activity, mechanism of action, and possible uses as antimicrobial molecules and in plant biotechnology.
Gisely Paula Gomes,Douglas Mariani Zeffa,Leonel Vinicius Constantino,Viviane Yumi Baba,Federico Pomar,Rosana Rodrigues,Leandro S. A. Gonçalves 한국원예학회 2021 Horticulture, Environment, and Biotechnology Vol.62 No.3
Capsicum baccatum is one of the main chili peppers cultivated in South America. However, most studies on genetics andbreeding have focused on C. annuum , and not C. baccatum . To gain more insights into C. baccatum genetics and breeding,this work estimated the combinatorial abilities of dedo-de-moça-type chili peppers ( C. baccatum var. pendulum ) in relationto morphoagronomic and biochemical traits, determined the genetic action involved in the expression of these traits, andidentifi ed the superior hybrid combinations. Crosses among the fi ve genotypes in a full diallel mating design resulted in 20F 1 hybrids. Morphoagronomic, phytochemical, and antioxidant data were obtained, and Griffi ng’s diallel model was usedto estimate the general and specifi c combining ability (GCA and SCA, respectively) as well as the reciprocal eff ect (RE). High diversity was observed for all traits among the parents and hybrids. Signifi cant eff ects of GCA, SCA, and RE werealso detected for the majority of traits, indicating that additive, non-additive, and cytoplasmic eff ects are involved in thegenetic control of these traits. The non-additive eff ects were predominant for most traits, and the ‘BRS Mari’ × ‘Mexicali’and ‘BRS Mari’ × ‘Hortivale’ hybrids were the most promising in terms of their yield per plant and their biochemical traits.