Short Term Elevated CO2 Interacts with Iron Deficiency, Further Repressing Growth, Photosynthesis and Mineral Accumulation in Soybean (Glycine max L.) and Common Bean (Phaseolus vulgaris L.)

Elevated CO2 (eCO2) has been reported to cause mineral losses in several important food crops such as soybean (Glycine max L.) and common bean (Phaseolus vulgaris L.). In addition, more than 30% of the world’s arable...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Teresa Deuchande, José Soares, Fábio Nunes, Elisabete Pinto, Marta W. Vasconcelos
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	elevated CO<sub>2</sub> iron deficiency (Fe) plant nutrition organic acids photosynthesis Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/840fe046cf7e47188735ba8fb8450642
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:840fe046cf7e47188735ba8fb8450642
record_format	dspace
spelling	oai:doaj.org-article:840fe046cf7e47188735ba8fb84506422021-11-25T17:31:06ZShort Term Elevated CO<sub>2</sub> Interacts with Iron Deficiency, Further Repressing Growth, Photosynthesis and Mineral Accumulation in Soybean (<i>Glycine max</i> L.) and Common Bean (<i>Phaseolus vulgaris</i> L.)10.3390/environments81101222076-3298https://doaj.org/article/840fe046cf7e47188735ba8fb84506422021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3298/8/11/122https://doaj.org/toc/2076-3298Elevated CO<sub>2</sub> (eCO<sub>2</sub>) has been reported to cause mineral losses in several important food crops such as soybean (<i>Glycine max</i> L.) and common bean (<i>Phaseolus vulgaris</i> L.). In addition, more than 30% of the world’s arable land is calcareous, leading to iron (Fe) deficiency chlorosis and lower Fe levels in plant tissues. We hypothesize that there will be combinatorial effects of eCO<sub>2</sub> and Fe deficiency on the mineral dynamics of these crops at a morphological, biochemical and physiological level. To test this hypothesis, plants were grown hydroponically under Fe sufficiency (20 μM Fe-EDDHA) or deficiency (0 μM Fe-EDDHA) at ambient CO<sub>2</sub> (aCO<sub>2</sub>, 400 ppm) or eCO<sub>2</sub> (800 ppm). Plants of both species exposed to eCO<sub>2</sub> and Fe deficiency showed the lowest biomass accumulation and the lowest root: shoot ratio. Soybean at eCO<sub>2</sub> had significantly higher chlorophyll levels (81%, <i>p</i> < 0.0001) and common bean had significantly higher photosynthetic rates (60%, <i>p</i> < 0.05) but only under Fe sufficiency. In addition, eCO<sub>2</sub> increased ferric chelate reductase acivity (FCR) in Fe-sufficient soybean by 4-fold (<i>p</i> < 0.1) and in Fe-deficient common bean plants by 10-fold (<i>p</i> < 0.0001). In common bean, an interactive effect of both environmental factors was observed, resulting in the lowest root Fe levels. The lowering of Fe accumulation in both crops under eCO<sub>2</sub> may be linked to the low root citrate accumulation in these plants when grown with unrestricted Fe supply. No changes were observed for malate in soybean, but in common bean, shoot levels were significantly lower under Fe deficiency (77%, <i>p</i> < 0.05) and Fe sufficiency (98%, <i>p</i> < 0.001). These results suggest that the mechanisms involved in reduced Fe accumulation caused by eCO<sub>2</sub> and Fe deficiency may not be independent, and an interaction of these factors may lead to further reduced Fe levels.Teresa DeuchandeJosé SoaresFábio NunesElisabete PintoMarta W. VasconcelosMDPI AGarticleelevated CO<sub>2</sub>iron deficiency (Fe)plant nutritionorganic acidsphotosynthesisEnvironmental technology. Sanitary engineeringTD1-1066ENEnvironments, Vol 8, Iss 122, p 122 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	elevated CO<sub>2</sub> iron deficiency (Fe) plant nutrition organic acids photosynthesis Environmental technology. Sanitary engineering TD1-1066
spellingShingle	elevated CO<sub>2</sub> iron deficiency (Fe) plant nutrition organic acids photosynthesis Environmental technology. Sanitary engineering TD1-1066 Teresa Deuchande José Soares Fábio Nunes Elisabete Pinto Marta W. Vasconcelos Short Term Elevated CO<sub>2</sub> Interacts with Iron Deficiency, Further Repressing Growth, Photosynthesis and Mineral Accumulation in Soybean (<i>Glycine max</i> L.) and Common Bean (<i>Phaseolus vulgaris</i> L.)
description	Elevated CO<sub>2</sub> (eCO<sub>2</sub>) has been reported to cause mineral losses in several important food crops such as soybean (<i>Glycine max</i> L.) and common bean (<i>Phaseolus vulgaris</i> L.). In addition, more than 30% of the world’s arable land is calcareous, leading to iron (Fe) deficiency chlorosis and lower Fe levels in plant tissues. We hypothesize that there will be combinatorial effects of eCO<sub>2</sub> and Fe deficiency on the mineral dynamics of these crops at a morphological, biochemical and physiological level. To test this hypothesis, plants were grown hydroponically under Fe sufficiency (20 μM Fe-EDDHA) or deficiency (0 μM Fe-EDDHA) at ambient CO<sub>2</sub> (aCO<sub>2</sub>, 400 ppm) or eCO<sub>2</sub> (800 ppm). Plants of both species exposed to eCO<sub>2</sub> and Fe deficiency showed the lowest biomass accumulation and the lowest root: shoot ratio. Soybean at eCO<sub>2</sub> had significantly higher chlorophyll levels (81%, <i>p</i> < 0.0001) and common bean had significantly higher photosynthetic rates (60%, <i>p</i> < 0.05) but only under Fe sufficiency. In addition, eCO<sub>2</sub> increased ferric chelate reductase acivity (FCR) in Fe-sufficient soybean by 4-fold (<i>p</i> < 0.1) and in Fe-deficient common bean plants by 10-fold (<i>p</i> < 0.0001). In common bean, an interactive effect of both environmental factors was observed, resulting in the lowest root Fe levels. The lowering of Fe accumulation in both crops under eCO<sub>2</sub> may be linked to the low root citrate accumulation in these plants when grown with unrestricted Fe supply. No changes were observed for malate in soybean, but in common bean, shoot levels were significantly lower under Fe deficiency (77%, <i>p</i> < 0.05) and Fe sufficiency (98%, <i>p</i> < 0.001). These results suggest that the mechanisms involved in reduced Fe accumulation caused by eCO<sub>2</sub> and Fe deficiency may not be independent, and an interaction of these factors may lead to further reduced Fe levels.
format	article
author	Teresa Deuchande José Soares Fábio Nunes Elisabete Pinto Marta W. Vasconcelos
author_facet	Teresa Deuchande José Soares Fábio Nunes Elisabete Pinto Marta W. Vasconcelos
author_sort	Teresa Deuchande
title	Short Term Elevated CO<sub>2</sub> Interacts with Iron Deficiency, Further Repressing Growth, Photosynthesis and Mineral Accumulation in Soybean (<i>Glycine max</i> L.) and Common Bean (<i>Phaseolus vulgaris</i> L.)
title_short	Short Term Elevated CO<sub>2</sub> Interacts with Iron Deficiency, Further Repressing Growth, Photosynthesis and Mineral Accumulation in Soybean (<i>Glycine max</i> L.) and Common Bean (<i>Phaseolus vulgaris</i> L.)
title_full	Short Term Elevated CO<sub>2</sub> Interacts with Iron Deficiency, Further Repressing Growth, Photosynthesis and Mineral Accumulation in Soybean (<i>Glycine max</i> L.) and Common Bean (<i>Phaseolus vulgaris</i> L.)
title_fullStr	Short Term Elevated CO<sub>2</sub> Interacts with Iron Deficiency, Further Repressing Growth, Photosynthesis and Mineral Accumulation in Soybean (<i>Glycine max</i> L.) and Common Bean (<i>Phaseolus vulgaris</i> L.)
title_full_unstemmed	Short Term Elevated CO<sub>2</sub> Interacts with Iron Deficiency, Further Repressing Growth, Photosynthesis and Mineral Accumulation in Soybean (<i>Glycine max</i> L.) and Common Bean (<i>Phaseolus vulgaris</i> L.)
title_sort	short term elevated co<sub>2</sub> interacts with iron deficiency, further repressing growth, photosynthesis and mineral accumulation in soybean (<i>glycine max</i> l.) and common bean (<i>phaseolus vulgaris</i> l.)
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/840fe046cf7e47188735ba8fb8450642
work_keys_str_mv	AT teresadeuchande shorttermelevatedcosub2subinteractswithirondeficiencyfurtherrepressinggrowthphotosynthesisandmineralaccumulationinsoybeaniglycinemaxilandcommonbeaniphaseolusvulgarisil AT josesoares shorttermelevatedcosub2subinteractswithirondeficiencyfurtherrepressinggrowthphotosynthesisandmineralaccumulationinsoybeaniglycinemaxilandcommonbeaniphaseolusvulgarisil AT fabionunes shorttermelevatedcosub2subinteractswithirondeficiencyfurtherrepressinggrowthphotosynthesisandmineralaccumulationinsoybeaniglycinemaxilandcommonbeaniphaseolusvulgarisil AT elisabetepinto shorttermelevatedcosub2subinteractswithirondeficiencyfurtherrepressinggrowthphotosynthesisandmineralaccumulationinsoybeaniglycinemaxilandcommonbeaniphaseolusvulgarisil AT martawvasconcelos shorttermelevatedcosub2subinteractswithirondeficiencyfurtherrepressinggrowthphotosynthesisandmineralaccumulationinsoybeaniglycinemaxilandcommonbeaniphaseolusvulgarisil
_version_	1718412234828283904

Short Term Elevated CO<sub>2</sub> Interacts with Iron Deficiency, Further Repressing Growth, Photosynthesis and Mineral Accumulation in Soybean (<i>Glycine max</i> L.) and Common Bean (<i>Phaseolus vulgaris</i> L.)

Ejemplares similares