ABA-CsABI5-CsCalS11 module upregulates Callose deposition of citrus infected with .

Huanglongbing (HLB) primarily caused by Liberibacter asiaticus (Las) has been threatening citrus production globally. Under HLB conditions, an excessive accumulation of the polysaccharide callose in citrus phloem occurs, leading to phloem blockage and starch accumulation in leaves. The callose production is controlled by callose synthases (CalS), which have multiple members within plants.

Citrus peel polyphenols alleviate intestinal inflammation in mice with dextran sulfate sodium-induced acute colitis.

Citrus peel polyphenols have possess the distinct anti-inflammatory activities. However, its underlying mechanism on ulcerative colitis have not been elucidated. The aim of this research was to investigate the anti-inflammatory effect and action mechanisms of citrus peel polyphenols.

Identification of citrus APX gene family and their response to CYVCV infection.

Ascorbate peroxidase (APX) is one of the most important antioxidant enzymes in the reactive oxygen metabolic pathway of plants. The role of APX under biotic and abiotic stress conditions has been explored, but the response pattern of APX under biotic stresses is relatively less known. In this study, seven CsAPXs gene family members were identified based on the sweet orange (Citrus sinensis) genome and subjected to evolutionary and structural analysis using bioinformatics software.

Content analysis and drug safety evaluation of four furanocoumarins in six pomelos produced in China.

The content of 4 6',7'-dihydroxybergamottin (DHB), bergamottin, isoimperatorin and epoxybergamottin of six pomelos produced in China were detected by High-performance liquid chromatography-diode array detection and their safety of related medicines was evaluated by inhibition of medium concentration (IC) of cytochrome oxidases CYP450-like. The results showed that the total content of the four furanocoumarins in these pomelo juices from high to low in order was Guanximi pomelo > Liangping pomelo > Pinghemi pomelo > grapefruit > Huyou > Shatian pomelo. The concentration of isoimperatorin in grapefruit, DHB, bergamottinand and isoimperatorin in Liangping, bergamottin and epoxybergamottin in Pinghemi and all the four furanocoumarins in Guanximi were exceeded the corresponding IC; although Huyou and Shatian contained some furanocoumarins, they did not exceed IC.