Methanol steam reforming for hydrogen production driven by an atomically precise Cu catalyst

Plasmon-induced hot-electron transfer from metal nanostructures is being intensely pursed in current photocatalytic research,however it remains elusive whether molecular-like metal clusters with excitonic behavior can be used as light-harvesting materials in solar energy utilization such as photocatalytic methanol steam reforming.In this work,we report an atomically precise Cu_(13)cluster protected by dual ligands of thiolate and phosphine that can be viewed as the assembly of one top Cu atom and three Cu_(4)tetrahedra.The Cu_(13)H_(10)(SR)_(3)(PR’_(3))_(7)(SR=2,4-dichlorobenzenethiol,PR’_(3)=P(4-FC_(6)H_(4))_(3))cluster can give rise to highly efficient light-driven activity for methanol steam reforming toward H_(2)production.

SlMYB1 regulates the accumulation of lycopene, fruit shape, and resistance to Botrytis cinerea in tomato

Fruit lycopene,shape,and resistance are essential traits in vegetables whose final product is fruit,and they are also closely related to and strictly regulated by multiple transcription factors.Lycopene,which cannot be synthesized by the human body and can only be ingested from the outside,was important in maintaining human health.During fruit ripening and post-harvest,tomato plants face a variety of biotic or abiotic stresses,which might inf lict great damage to fruit quality due to its f lat shape and pointed tip during storage and transportation.Therefore,there is an urgent need for key molecular switches to simultaneously improve fruit lycopene and resistance to biotic stress during ripening.Here,we identified the MYB transcription factor SlMYB1 in tomato plants which could bind to the promoters of lycopene synthesis-related genes,SlLCY1,SlPSY2,and the pathogen-related gene SlPR5 directly,to regulate the fruit lycopene and resistance to Botrytis cinerea in tomato.In addition to regulating lycopene synthesis,SlMYB1 also regulates the content of soluble sugar,soluble protein and f lavonoid in tomato.What’s more,SlMYB1 could regulate the tomato fruit shape,making it smoother or f latter to prevent skin damage caused by vibration on fruits.RNA sequencing(RNA-seq)further showed that SlMYB1 fruit-specific expression lines had multiple differentially expressed genes compared with those from wild-type plants,suggesting that SlMYB1 might have multiple roles in fruit nutritional quality control and resistance to stresses,which is a rare occurrence in previous studies.In summary,our results revealed that SlMYB1 was an essential multi-functional transcription factor that could regulate the lycopene and resistance to Botrytis cinerea,and change the shape of fruit in tomato plants.

Plant immune inducer ZNC promotes rutin accumulation and enhances resistance to Botrytis cinerea in tomato

Gray mold is a destructive disease caused by Botrytis cinerea,a pervasive plant pathogen,which poses a threat to both tomato growth and postharvest storage.The utilization of induced resistance presents a potential strategy for combating plant pathogenic attacks.ZNC(zhinengcong),an extract derived from the endophytic fungus Paecilo-myces variotii,has been discovered to play a vital role in preventing diverse forms of bacterial infections.Nevertheless,the precise mechanism behind its ability to enhance tomato resistance to fungi remains unclear.In this study,we found that the exogenous spraying of ZNC could significantly improve the resistance of tomato plants to B.cinerea.The results of both the metabolomic analysis and high-performance liquid chromatography(HPLC)demonstrated that tomato plants responded to ZNC treatment by accumulating high levels of rutin.Additional transcriptome analysis uncovered that rutin enhances tomato resistance possible by initiating the generation of reactive oxygen species(ROS)and phosphorylation of mitogen-activated protein kinases(MPKs)related genes expression during the initial phase of invasion by B.cinerea.In addition,we also found that rutin might activate plant immunity by eliciting ethylene(ET)and jasmonic acid(JA)-mediated pathways.Therefore,plant immune inducer ZNC and rutin has bright application prospects and high utilization value to control gray mold.