The one fatality attributed to the spider by medical authorities has also been questioned, and there are no documented cases where an otherwise-healthy person has developed a necrotic lesion from a positively identified hobo spider bite.
32.
Upon harvesting, farmers will cut out the necrotic lesions of affected tubers or they will discard tubers that are severely affected . 10 30 % of root rot constitutes moderate infection, decreasing the market value of tubers by 90 %.
33.
C . capsici infection tends to infect ripe red fruit, and lead to the development of brown necrotic lesions containing concentric acervuli that will eventually appear black from the setae and sclerotia ( Srinivasan, Vijayalakshmi Kothandaraman, Vaikuntavasan, & Rethinasamy, 2014 ).
34.
When A . thaliana plants were transformed with overexpression constructs of the AtMHX gene driven by the CaMV 35S promoter, the plants over-accumulated the protein and showed a phenotype of necrotic lesions in the leaves, which the authors suggest is caused by a disruption in the normal function of the vacuole, given their observation that the total Mg 2 + ( or Zn 2 + ) content of the plants was not altered in the transgenic plants.
