Enhanced Cd-Accumulation in Typha latifolia by Interaction with Pseudomonas rhodesiae GRC140 under Axenic Hydroponic Conditions

被引:7
作者
Adelina Rolon-Cardenas, Gisela [1 ,2 ]
Guadalupe Martinez-Martinez, Joana [2 ]
Lizzeta Arvizu-Gomez, Jackeline [3 ]
Elena Soria-Guerra, Ruth [1 ]
Catalina Alfaro-De la Torre, Ma [1 ]
Alatorre-Cobos, Fulgencio [4 ]
Rubio-Santiago, Jesus [1 ]
de Montserrat Gonzalez-Balderas, Regina [1 ]
Carranza-Alvarez, Candy [1 ,2 ]
Roberto Macias-Perez, Jose [2 ]
Rubi Aldaba-Muruato, Liseth [2 ]
Hernandez-Morales, Alejandro [1 ,2 ]
机构
[1] Univ Autonoma San Luis Potosi, Fac Ciencias Quim, San Luis Potosi 78210, San Luis Potosi, Mexico
[2] Univ Autonoma San Luis Potosi, Fac Estudios Profesionales Zona Huasteca, San Luis Potosi 79060, San Luis Potosi, Mexico
[3] Univ Autonoma Nayarit, Ctr Nayarita Innovac & Transferencia Tecnol CENIT, Secretaria Invest & Posgrad, Tepic 63173, Nayarit, Mexico
[4] Colegio Postgrad Campus Campeche, Campeche 24450, Mexico
来源
PLANTS-BASEL | 2022年 / 11卷 / 11期
关键词
Typha; axenic hydroponic system; PGPB; auxin; phytoremediation; ALLEVIATES CADMIUM TOXICITY; ARABIDOPSIS-THALIANA; SCIRPUS-AMERICANUS; LEAD; TOLERANCE; PLANTS; PHYTOREMEDIATION; DETOXIFICATION; ANGUSTIFOLIA; REGENERATION;
D O I
10.3390/plants11111447
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The Typha genus comprises plant species extensively studied for phytoremediation processes. Recently, Pseudomonas rhodesiae GRC140, an IAA-producing bacterium, was isolated from Typha latifolia roots. This bacterium stimulates the emergence of lateral roots of Arabidopsis thaliana in the presence and absence of cadmium. However, the bacterial influence on cadmium accumulation by the plant has not been determined. Moreover, the P. rhodesiae GRC140 effect in Cd phytoextraction by T. latifolia remains poorly understood. In this work, an axenic hydroponic culture of T. latifolia was established. The plants were used to evaluate the effects of cadmium stress in axenic plants and determine the effects of P. rhodesiae GRC140 and exogenous indole acetic acid (IAA) on Cd tolerance and Cd uptake by T. latifolia. Biomass production, total chlorophyll content, root electrolyte leakage, catalase activity, total glutathione, and Cd content were determined. The results showed that Cd reduces shoot biomass and increases total glutathione and Cd content in a dose-dependent manner in root tissues. Furthermore, P. rhodesiae GRC140 increased Cd translocation to the shoots, while IAA increased the Cd accumulation in plant roots, indicating that both treatments increase Cd removal by T. latifolia plants. These results indicate that axenic plants in hydroponic systems are adequate to evaluate the Cd effects in plants and suggest that T. latifolia phytoextraction abilities could be improved by P. rhodesiae GRC140 and exogenous IAA application.
引用
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页数:15
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