Growth promotion and protection from drought in Eucalyptus grandis seedlings inoculated with beneficial bacteria embedded in a superabsorbent polymer

Eucalyptus grandis is a globally important tree crop. Greenhouse-grown tree seedlings often face water deficit after outplanting to the field, which can affect their survival and establishment severely. This can be alleviated by the application of superabsorbent hydrophilic polymers (SAPs). Growth p...

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Detalles Bibliográficos
Autores principales: Chaín, José María, Tubert, Esteban, Graciano, Corina, Castagno, Luis Nazareno, Recchi, Marina, Pieckenstain, Fernando Luis, Estrella, Maria Julia, Gudesblat, Gustavo, Amodeo, Gabriela, Baroli, Irene
Formato: Articulo
Lenguaje:Inglés
Publicado: 2020
Materias:
Biología
Crop
Horticulture
Transpiration
Inoculation
Drought tolerance
Water content
Seedling
Photosynthetic capacity
Rhizosphere
Biology
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/124499
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-124499
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Biología
Crop
Horticulture
Transpiration
Inoculation
Drought tolerance
Water content
Seedling
Photosynthetic capacity
Rhizosphere
Biology
spellingShingle Biología
Crop
Horticulture
Transpiration
Inoculation
Drought tolerance
Water content
Seedling
Photosynthetic capacity
Rhizosphere
Biology
Chaín, José María
Tubert, Esteban
Graciano, Corina
Castagno, Luis Nazareno
Recchi, Marina
Pieckenstain, Fernando Luis
Estrella, Maria Julia
Gudesblat, Gustavo
Amodeo, Gabriela
Baroli, Irene
Growth promotion and protection from drought in Eucalyptus grandis seedlings inoculated with beneficial bacteria embedded in a superabsorbent polymer
topic_facet Biología
Crop
Horticulture
Transpiration
Inoculation
Drought tolerance
Water content
Seedling
Photosynthetic capacity
Rhizosphere
Biology
description Eucalyptus grandis is a globally important tree crop. Greenhouse-grown tree seedlings often face water deficit after outplanting to the field, which can affect their survival and establishment severely. This can be alleviated by the application of superabsorbent hydrophilic polymers (SAPs). Growth promoting bacteria can also improve crop abiotic stress tolerance; however, their use in trees is limited, partly due to difficulties in the application and viability loss. In this work, we evaluated the improvement of drought tolerance of E. grandis seedlings by inoculating with two Pseudomonas strains (named M25 and N33), carried by an acrylic-hydrocellulosic SAP. We observed significant bacterial survival in the seedling rhizosphere 50 days after inoculation. Under gradual water deficit conditions, we observed a considerable increase in the water content and wall elasticity of M25-inoculated plants and a trend towards growth promotion with both bacteria. Under rapid water deficit conditions, which caused partial defoliation, both strains significantly enhanced the formation of new leaves, while inoculation with M25 reduced the transpiration rate. Co-inoculation with M25 and N33 substantially increased growth and photosynthetic capacity. We conclude that the selected bacteria can benefit E. grandis early growth and can be easily inoculated at transplant by using an acrylic-hydrocellulosic SAP.
format Articulo
Articulo
author Chaín, José María
Tubert, Esteban
Graciano, Corina
Castagno, Luis Nazareno
Recchi, Marina
Pieckenstain, Fernando Luis
Estrella, Maria Julia
Gudesblat, Gustavo
Amodeo, Gabriela
Baroli, Irene
author_facet Chaín, José María
Tubert, Esteban
Graciano, Corina
Castagno, Luis Nazareno
Recchi, Marina
Pieckenstain, Fernando Luis
Estrella, Maria Julia
Gudesblat, Gustavo
Amodeo, Gabriela
Baroli, Irene
author_sort Chaín, José María
title Growth promotion and protection from drought in Eucalyptus grandis seedlings inoculated with beneficial bacteria embedded in a superabsorbent polymer
title_short Growth promotion and protection from drought in Eucalyptus grandis seedlings inoculated with beneficial bacteria embedded in a superabsorbent polymer
title_full Growth promotion and protection from drought in Eucalyptus grandis seedlings inoculated with beneficial bacteria embedded in a superabsorbent polymer
title_fullStr Growth promotion and protection from drought in Eucalyptus grandis seedlings inoculated with beneficial bacteria embedded in a superabsorbent polymer
title_full_unstemmed Growth promotion and protection from drought in Eucalyptus grandis seedlings inoculated with beneficial bacteria embedded in a superabsorbent polymer
title_sort growth promotion and protection from drought in eucalyptus grandis seedlings inoculated with beneficial bacteria embedded in a superabsorbent polymer
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/124499
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