TY - JOUR
T1 - Phytotoxicity of glyphosate-based herbicide to Typha angustifolia and Vetiveria zizanioides and its effect on rhizosphere bacteria
AU - Gustinasari, Kiki
AU - Pandebesie, Ellina Sitepu
AU - Syafei, Arie Dipareza
AU - Hermana, Joni
N1 - Publisher Copyright:
© 2021, The Author(s), under exclusive licence to Springer Nature Switzerland AG.
PY - 2021/12
Y1 - 2021/12
N2 - The persistence of glyphosate-based herbicide (GBH) residues could harm non-target crops in the agroecosystems, and its degradation could be enhanced by phytoremediation. Typha angustifolia and Vetiveria zizanioides are aquatic plants with great potential for phytoremediation, but data on the tolerance of both plants to GBH is very limited. In this study, we determined the GBH phytotoxicity—the maximum tolerable glyphosate levels—for both plants and assessed GBH’s effects on their rhizosphere bacteria. The phytotoxicity test used sand as media mixed with GBH concentrations of 0.3, 0.6, 1.2, 2.4, 4.8, 9.6, and 19.2 mg/L with an exposure time of 7 days. Likewise, T. angustifolia was more tolerant of GBH than V. zizanioides, at 2.4 mg/L and 1.2 mg/L, respectively. The control rhizosphere of T. angustifolia was dominated by Bacillus polymyxa and the rhizosphere with 1.2 mg/L GBH was dominated by Bacillus megaterium. In the rhizosphere of V. zizanioides, the dominance of the Bacillus polymyxa and Pseudomonas putida was replaced by that of Bacillus subtilis and Pseudomonas agilis. The decrease in the bacterial population post-GBH exposure was 92.97% for T. angustifolia and 95.71% for V. zizanioides.
AB - The persistence of glyphosate-based herbicide (GBH) residues could harm non-target crops in the agroecosystems, and its degradation could be enhanced by phytoremediation. Typha angustifolia and Vetiveria zizanioides are aquatic plants with great potential for phytoremediation, but data on the tolerance of both plants to GBH is very limited. In this study, we determined the GBH phytotoxicity—the maximum tolerable glyphosate levels—for both plants and assessed GBH’s effects on their rhizosphere bacteria. The phytotoxicity test used sand as media mixed with GBH concentrations of 0.3, 0.6, 1.2, 2.4, 4.8, 9.6, and 19.2 mg/L with an exposure time of 7 days. Likewise, T. angustifolia was more tolerant of GBH than V. zizanioides, at 2.4 mg/L and 1.2 mg/L, respectively. The control rhizosphere of T. angustifolia was dominated by Bacillus polymyxa and the rhizosphere with 1.2 mg/L GBH was dominated by Bacillus megaterium. In the rhizosphere of V. zizanioides, the dominance of the Bacillus polymyxa and Pseudomonas putida was replaced by that of Bacillus subtilis and Pseudomonas agilis. The decrease in the bacterial population post-GBH exposure was 92.97% for T. angustifolia and 95.71% for V. zizanioides.
KW - Glyphosate-based herbicide
KW - Phytotoxicity
KW - Rhizosphere bacteria
KW - Typha angustifolia
KW - Vetiveria zizanioides
UR - http://www.scopus.com/inward/record.url?scp=85112717727&partnerID=8YFLogxK
U2 - 10.1007/s41204-021-00140-1
DO - 10.1007/s41204-021-00140-1
M3 - Article
AN - SCOPUS:85112717727
SN - 2365-6379
VL - 6
JO - Nanotechnology for Environmental Engineering
JF - Nanotechnology for Environmental Engineering
IS - 3
M1 - 45
ER -