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Citrus Huanglongbing (HLB) is one of the most destructive and widespread diseases of citrus, caused by ‘Candidates Liberibacter’, a non-cultured, phloem-restricted alpha-proteobacterium. In the(More)
The dahlia isolate of Potato spindle tuber viroid (PSTVd-D) shares 97 % sequence homology with PSTVd-intermediate (PSTVd-I), but differs at eight positions in the nucleotide sequence from PSTVd-I:(More)