Endophytic Fungi Assures Tropical Forage Grass Growth by Water Stress Tolerances.

Autor: Azevedo RP; Departamento de Ciência do Solo, Universidade Federal de Lavras, Lavras, Minas Gerais, 37200-900, Brazil., Alves NM; Departamento de Biologia, Universidade Federal de Lavras, Lavras, Minas Gerais, 37200-900, Brazil., Costa IA; Departamento de Biologia, Universidade Federal de Lavras, Lavras, Minas Gerais, 37200-900, Brazil., Domingues MIS; Departamento de Ciência do Solo, Universidade Federal de Lavras, Lavras, Minas Gerais, 37200-900, Brazil., Bandória NA; Departamento de Biologia, Universidade Federal de Lavras, Lavras, Minas Gerais, 37200-900, Brazil., de Figueiredo UJ; Barenbrug do Brasil Sementes Ltda, Guaíra, São Paulo, 14790-000, Brazil., de Medeiros FHV; Departamento de Fitopatologia, Universidade Federal de Lavras, Lavras, Minas Gerais, 37200-900, Brazil., Silva BM; Departamento de Ciência do Solo, Universidade Federal de Lavras, Lavras, Minas Gerais, 37200-900, Brazil. brunom.silva@ufla.br., Cardoso PG; Departamento de Biologia, Universidade Federal de Lavras, Lavras, Minas Gerais, 37200-900, Brazil.
Jazyk: angličtina
Zdroj: Current microbiology [Curr Microbiol] 2021 Dec; Vol. 78 (12), pp. 4060-4071. Date of Electronic Publication: 2021 Oct 12.
DOI: 10.1007/s00284-021-02672-w
Abstrakt: Forage plants is the base of beef and dairy cattle production. While water stress limits agricultural production worldwide, endophytic fungi can play a beneficial role for plants, such as tolerance to biotic and abiotic stresses. The objective of this work was to evaluate the effect of inoculation of the endophytic fungi Paraconiothyrium estuarinum (CML 3695, CML 3696, CML 3699) and Paraconiothyrium cyclothyrioides (CML 3697, CML 3698) on agronomic characteristics of two forage species, Brachiaria brizantha (A. Rich) Stapf. cv. Marandu and Megathyrsus maximus Jacq. cv. BRS Mombaça, under different available water capacities. The treatments simulated a long drought period (LDH) equivalent to 10% of the available water capacity (AWC) and simulated 7 (7 DH) and 14 days of drought (14 DH) without water supply. The grasses were evaluated for length and dry weight of shoots and roots. All treatments reached humidity below the permanent wilting point (PWP) and the highest variation in soil moisture was observed at 14 DH, for both grass species. The endophytic fungi promoted an average 15% increase in shoot length (SL) for B. brizantha and an increase of 34% for SL, 266% for Dry Shoot Mass (SDM), and 340% for Dry Root Mass (RDM) for M. maximus treated with P. estuarinum (CML 3699) at 7 DH. Paraconiothyrium estuarinum (CML 3699) guaranteed the highest tolerance to water deficit and sustainable growth performance to both tested grasses.
(© 2021. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
Databáze: MEDLINE
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