Potential of mycorrhizal inocula to improve growth, nutrition and enzymatic activities in Retama sphaerocarpa compared with chemical fertilization under drought conditions

The growth of Retama sphaerocarpa under drought conditions was similarly increased by arbuscular mycorrhizal (AM) colonization [native AM fungal consortium (M), allochthonous Rhizophagus intraradices (RI)] or H3PO4 application [25 ppm P (1P) or 50 ppm P (2P)]. However, the antioxidant ascorbate pero...

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Autores principales:	Armada,E, López-Castillo,O, Roldán,A, Azcón,R
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2016
Materias:	Drought stress mycorrhizal-colonization P or K fertilization antioxidant activities Retama sphaerocarpa nutrition enzymatic soil activities
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162016000200010
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spelling	oai:scielo:S0718-951620160002000102016-10-24Potential of mycorrhizal inocula to improve growth, nutrition and enzymatic activities in Retama sphaerocarpa compared with chemical fertilization under drought conditionsArmada,ELópez-Castillo,ORoldán,AAzcón,R Drought stress mycorrhizal-colonization P or K fertilization antioxidant activities Retama sphaerocarpa nutrition enzymatic soil activities The growth of Retama sphaerocarpa under drought conditions was similarly increased by arbuscular mycorrhizal (AM) colonization [native AM fungal consortium (M), allochthonous Rhizophagus intraradices (RI)] or H3PO4 application [25 ppm P (1P) or 50 ppm P (2P)]. However, the antioxidant ascorbate peroxidase (APX) activity was increased by P-fertilization and decreased by AM colonization in plants of similar size, which revealed possible AM protection against drought. RI was most effective in enhancing P and it also reduced glutathione reductase (GR) activity compared with plants of similar biomass from other treatments. In a subsequent study the mixture of autochthonous inocula (AM fungal consortium (M) plus native Bacillus thuringiensis (B)) were able to fortify K2SO4 fertilization [5 mM K (1K) or 10 mM K (2K)] on R. sphaerocarpa under drought. Dual inocula increased nutrient content only in plants fertilized with 1K, while 2K even decreased the abundance of arbuscules. The reduced superoxide dismutase (SOD) and APX and the elimination of catalase (CAT) and GR activities found in co-inoculated K-fertilized plants suggested the lowest oxidative stress and the highest potential to cope with drought irrespective of nutrition. In both experiments inocula enhanced soil enzymatic activities, which also contributed to higher performance of inoculated plants under drought.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.16 n.2 20162016-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162016000200010en10.4067/S0718-95162016005000035
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Drought stress mycorrhizal-colonization P or K fertilization antioxidant activities Retama sphaerocarpa nutrition enzymatic soil activities
spellingShingle	Drought stress mycorrhizal-colonization P or K fertilization antioxidant activities Retama sphaerocarpa nutrition enzymatic soil activities Armada,E López-Castillo,O Roldán,A Azcón,R Potential of mycorrhizal inocula to improve growth, nutrition and enzymatic activities in Retama sphaerocarpa compared with chemical fertilization under drought conditions
description	The growth of Retama sphaerocarpa under drought conditions was similarly increased by arbuscular mycorrhizal (AM) colonization [native AM fungal consortium (M), allochthonous Rhizophagus intraradices (RI)] or H3PO4 application [25 ppm P (1P) or 50 ppm P (2P)]. However, the antioxidant ascorbate peroxidase (APX) activity was increased by P-fertilization and decreased by AM colonization in plants of similar size, which revealed possible AM protection against drought. RI was most effective in enhancing P and it also reduced glutathione reductase (GR) activity compared with plants of similar biomass from other treatments. In a subsequent study the mixture of autochthonous inocula (AM fungal consortium (M) plus native Bacillus thuringiensis (B)) were able to fortify K2SO4 fertilization [5 mM K (1K) or 10 mM K (2K)] on R. sphaerocarpa under drought. Dual inocula increased nutrient content only in plants fertilized with 1K, while 2K even decreased the abundance of arbuscules. The reduced superoxide dismutase (SOD) and APX and the elimination of catalase (CAT) and GR activities found in co-inoculated K-fertilized plants suggested the lowest oxidative stress and the highest potential to cope with drought irrespective of nutrition. In both experiments inocula enhanced soil enzymatic activities, which also contributed to higher performance of inoculated plants under drought.
author	Armada,E López-Castillo,O Roldán,A Azcón,R
author_facet	Armada,E López-Castillo,O Roldán,A Azcón,R
author_sort	Armada,E
title	Potential of mycorrhizal inocula to improve growth, nutrition and enzymatic activities in Retama sphaerocarpa compared with chemical fertilization under drought conditions
title_short	Potential of mycorrhizal inocula to improve growth, nutrition and enzymatic activities in Retama sphaerocarpa compared with chemical fertilization under drought conditions
title_full	Potential of mycorrhizal inocula to improve growth, nutrition and enzymatic activities in Retama sphaerocarpa compared with chemical fertilization under drought conditions
title_fullStr	Potential of mycorrhizal inocula to improve growth, nutrition and enzymatic activities in Retama sphaerocarpa compared with chemical fertilization under drought conditions
title_full_unstemmed	Potential of mycorrhizal inocula to improve growth, nutrition and enzymatic activities in Retama sphaerocarpa compared with chemical fertilization under drought conditions
title_sort	potential of mycorrhizal inocula to improve growth, nutrition and enzymatic activities in retama sphaerocarpa compared with chemical fertilization under drought conditions
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162016000200010
work_keys_str_mv	AT armadae potentialofmycorrhizalinoculatoimprovegrowthnutritionandenzymaticactivitiesinretamasphaerocarpacomparedwithchemicalfertilizationunderdroughtconditions AT lopezcastilloo potentialofmycorrhizalinoculatoimprovegrowthnutritionandenzymaticactivitiesinretamasphaerocarpacomparedwithchemicalfertilizationunderdroughtconditions AT roldana potentialofmycorrhizalinoculatoimprovegrowthnutritionandenzymaticactivitiesinretamasphaerocarpacomparedwithchemicalfertilizationunderdroughtconditions AT azconr potentialofmycorrhizalinoculatoimprovegrowthnutritionandenzymaticactivitiesinretamasphaerocarpacomparedwithchemicalfertilizationunderdroughtconditions
_version_	1714206536032583680

Potential of mycorrhizal inocula to improve growth, nutrition and enzymatic activities in Retama sphaerocarpa compared with chemical fertilization under drought conditions

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