TABLE 2.
rDNA-ITS molecular identification of fungal isolates associated with root rot symptomatic avocado trees and necrosis severity on avocado stems as assessed in pathogenicity tests.
| ID isolate | Taxonomic assignment | GenBank accession number | NCBI best match (accession number) | Identity (%) | Necrosis severitya |
| A10 | Lasiodiplodia pseudotheobromae | MT571538 | Lasiodiplodia pseudotheobromae (MN887212.1) | 100 | 1 |
| A11 | Fusarium sp. | MT571539 | Fusarium sp. (MH397492.1) | 99.8 | 2 |
| A12 | Fusarium sp. | MT571540 | Fusarium sp. (MH397492.1) | 99.8 | 1 |
| A14 | Mortierella sp. | MT571541 | Mortierella sp. (MT366005.1) | 99.8 | 1 |
| A17 | Fusarium equiseti | MT571542 | Fusarium equiseti (MG650603.1) | 99.8 | 2 |
| A18 | Scytalidium sp. | MT571543 | Scytalidium sp. (MH268087.1) | 99.8 | 1 |
| A19 | Fusarium sp. | MT571544 | Fusarium sp. (JF505287.1) | 99.0 | 1 |
| B1 | Fusarium sp. | MT571545 | Fusarium sp. (MH777054.1) | 99.8 | 3 |
| B4 | Fusarium solani | MT571546 | Fusarium solani (MN326475.1) | 100 | 1 |
| B5 | Fusarium solani | MT571547 | Fusarium solani (MN326475.1) | 97.8 | 3 |
a Values assigned indicate the severity of the internal necrotic lesions observed in wound-inoculated stem segments of avocado after 4 weeks, following this classification: a value of 0 means no symptoms except discoloration at the wound site (the same as control); a value of 1 indicates moderate vascular damage (necrotic lesions surrounding the site of inoculation); a value of 2 refers to advanced damage (external necrosis, wilting and extended necrotic lesion through vascular tissue); a value of 3 indicates severe damage (generalized necrosis through the whole stem tissues).