TY - JOUR
T1 - Evaluation of morphological damage caused by a low molecular weight chitosan on the fungus Bipolaris oryzae
AU - Rodríguez-Pedroso, Aida T.
AU - Plascencia-Jatomea, Maribel
AU - Bautista-Baños, Silvia
AU - Cortez-Rocha, Mario O.
AU - Ramírez-Arrebato, Miguel
PY - 2015/10/1
Y1 - 2015/10/1
N2 - Antimicrobial activity of chitosan has been previously demonstrated on some fungi species. In this work, the direct effect of a low molecular weight chitosan (121.6 kDa) on the morphology of Bipolaris oryzae was studied by light and scanning electron microscopy techniques. Changes in the hyphae and germ tubes were observed. Moreover, structural and morphological changes during the apical growth phase of the fungus were detected by scanning electron microscopy at 3 g/L chitosan. B. oryzae hyphae malformations were detected, with shortening and thickening of hyphae and spore germ tubes shortening and swelling, together with hyphae agglomerations, all these changes affecting the fungus' multiplication and spreading capacity. These results support the possible use of the assayed chitosan in pest control strategies against B. oryzae in rice crops.
AB - Antimicrobial activity of chitosan has been previously demonstrated on some fungi species. In this work, the direct effect of a low molecular weight chitosan (121.6 kDa) on the morphology of Bipolaris oryzae was studied by light and scanning electron microscopy techniques. Changes in the hyphae and germ tubes were observed. Moreover, structural and morphological changes during the apical growth phase of the fungus were detected by scanning electron microscopy at 3 g/L chitosan. B. oryzae hyphae malformations were detected, with shortening and thickening of hyphae and spore germ tubes shortening and swelling, together with hyphae agglomerations, all these changes affecting the fungus' multiplication and spreading capacity. These results support the possible use of the assayed chitosan in pest control strategies against B. oryzae in rice crops.
KW - Germination
KW - Hyphae
KW - Phytopathogen
KW - Rice
KW - Scanning electron microscopy
UR - http://www.scopus.com/inward/record.url?scp=84979018781&partnerID=8YFLogxK
M3 - Artículo
SN - 0864-4551
VL - 32
SP - 4211
EP - 4213
JO - Biotecnologia Aplicada
JF - Biotecnologia Aplicada
IS - 4
ER -