Radical anatomy of endomycorrhiza in strawberry (Fragaria x ananassa var. Camino Real) grown in the Province of Tucumán

RUIZ, A.; LAZARINI, A.; SALAZAR, SERGIO M; KIRSCHBAUM, DANIEL S.; ALBORNOZ, PATRICIA LILIANA; DÍAZ RICCI, JUAN C.

Horco Molle, Tucumán

Jornada; 29º Annual Scientific Meeting; 2012

Tucumán Biology Associatioin

INTA-Famailla has implemented a spectrum of strawberry varietiesto reduce the risk of relying on a single variety. The aim ofthis work was to characterize radical anatomy and quantifyendomycorrhiza in camino real varieties. Plants were grown in soilswith 2 treatments: without disinfection (S/D) and with disinfection(C/D, metam sodium). Samples were collected from the root systemof 10 individuals per treatment with 2 replicates at 2 phenologicalstages. The primary structure of adventitious root epidermispresented unistrate, parenchymal cortex of 2-4 layers,endodermis with radial Caspary band, unistrate pericycle and diarchstele. The adventitious secondary structure showed different stagesof early growth, with remnants of epidermis and cortical parenchyma(from the primary structure) attached to developig periderm,low internal cortical parenchyma and vascular system (xylemand phloem). The varieties studied in both plants revealedendomycorrhizae S/D and C/D, morphology corresponded to Paris.In both stages variations in fungal structures were observed, predominanceof arbuscules (70%), hyphae remained low, presence ofdark septate. The radical anatomy is described for the first timeand the presence is announced of vesicular arbuscular mycorrhizalfungi in Fragaria x ananassa var. camino real.