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. 2008 Oct 7;21:119–134. doi: 10.3767/003158508X374385

Fig. 4.

Fig. 4

Internal symptoms seen when transversal or longitudinal cuts were made in the trunk or cordon of vines used for fungal isolation. a, b. Black spots and dark brown to black streaking of the xylem tissues; c. cross section showing sectorial necrosis; d. longitudinal section showing wood discoloration; e. central brown-red necrosis; f. cross section showing a central white rot surrounded by brown-red wood.