Glomeromycotina Guild Spore Abundance Correlates with Soil Organic Carbon in Homegardens and Seasonal Forests in Yucatan, Mexico

  • Sergio Manrique-Caamal Universidad Autónoma de Yucatán
  • Héctor Estrada-Medina Universidad Autónoma de Yucatán
  • Juan J. Jiménez-Osornio Universidad Autónoma de Yucatán
  • Michael F. Allen University of California Riverside
  • Edith B. Allen University of California Riverside
  • Roberto C. Barrientos-Medina Universidad Autónoma de Yucatán
  • Oscar O. Álvarez-Rivera Centro de Investigación Científica de Yucatán.
Keywords: arbuscular mycorrhizal fungi, edaphophilic fungi, rhizophilic fungi

Abstract

Soil organic carbon (SOC) is a key indicator of soil health. Arbuscular mycorrhizal fungi (AMF) have been shown to increase SOC and respond to SOC content, which in turn, is directly related to land use. We investigated the relationships between land use and Glomeromycotina AMF spore abundance of two AMF functional guilds, rhizophilic (having high root internal AMF hyphal length) and edaphophilic (with high external soil hyphal length) to SOC content in agroforestry systems (AS) and seasonal forest (SF) of Tzucacab, Yucatan, Mexico. Our results indicate greater SOC values in SF than AS of the same age with a trend of increasing SOC with system age. Rhizophilic spore abundance correlated with SOC content, showing dif ferences among land uses and system ages but not between seasons. No relationship was observed between edaphophilic spore abundance to SOC. Thus, we suggest that Glomeromicotyna spore abundance (measured at any time of the year) of rhizophilic fungi could be a good indicator of SOC and, a tool to monitor soil health due to land use changes.

Author Biographies

Sergio Manrique-Caamal, Universidad Autónoma de Yucatán

Departamento de Manejo y Conservación e Recursos Naturales Tropicales. Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Carretera Mérida-Xmatkuil Km. 15.5, 97315 Mérida, Yucatán, México.

Bachelor´s student

Héctor Estrada-Medina, Universidad Autónoma de Yucatán

Departamento de Manejo y Conservación e Recursos Naturales Tropicales. Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Carretera Mérida-Xmatkuil Km. 15.5, 97315 Mérida, Yucatán, México.

Proffesor-Researcher

Juan J. Jiménez-Osornio, Universidad Autónoma de Yucatán

Departamento de Manejo y Conservación e Recursos Naturales Tropicales. Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Carretera Mérida-Xmatkuil Km. 15.5, 97315 Mérida, Yucatán, México.

Proffesor-Researcher

Michael F. Allen, University of California Riverside

Department of Microbiology and Plant Pathology, University of California Riverside, 900 University Ave. Riverside, CA 92521.

Proffesor

Edith B. Allen, University of California Riverside

Department of Botany and Plant Sciences, University of California Riverside, 900 University Ave. Riverside, CA 92521.

Proffessor

Roberto C. Barrientos-Medina, Universidad Autónoma de Yucatán

Departamento de Ecología. Campus de Ciencias Biológicas y Agropecuarias, Universidad Autónoma de Yucatán, Carretera Mérida-Xmatkuil Km. 15.5, 97315 Mérida, Yucatán, México.

Profesor

Oscar O. Álvarez-Rivera, Centro de Investigación Científica de Yucatán.

Unidad de Biotecnología. Centro de Investigación Científica de Yucatán. Calle 43 No. 130 Chuburná de Hidalgo, 97200 Mérida, Yucatán.

PhD student

Published
2024-03-29
Section
Scientific Papers