Agricultural soil heavy metals pollution has become a severe problem in China.However,as one of the important agricultural soil type,studies on pollution in tobacco-growing soil are very limited.
Low-molecular-weight thiols(LMWTs)are widely distributing in waters and soils,which can act as electron shuttling compounds during biotic or abiotic processes.
In addition to DNA cytosine methylation(5-methyl-2-deoxycytidine,m5dC),DNA adenine methylation(N6-methyl-2-deoxyadenosine,m6dA)is another DNA modification that has been discovered in eukaryotes.