Bleaching of leaf litter accelerates the decomposition of recalcitrant components and mobilization of nitrogen in a subtropical forest

Abstract Selective removal of lignin and other recalcitrant compounds, collectively registered as acid-unhyrolyzable residue (AUR), results in bleaching of leaf litter, but the importance of bleaching in decomposition processes on forest soil has not been fully evaluated. The aims of this study were...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Takashi Osono, Syuntaro Hiradate, Satoru Hobara
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d6e80c2d10514526bc37b70b7bb28232
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:d6e80c2d10514526bc37b70b7bb28232
record_format	dspace
spelling	oai:doaj.org-article:d6e80c2d10514526bc37b70b7bb282322021-12-02T13:51:15ZBleaching of leaf litter accelerates the decomposition of recalcitrant components and mobilization of nitrogen in a subtropical forest10.1038/s41598-021-81206-72045-2322https://doaj.org/article/d6e80c2d10514526bc37b70b7bb282322021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81206-7https://doaj.org/toc/2045-2322Abstract Selective removal of lignin and other recalcitrant compounds, collectively registered as acid-unhyrolyzable residue (AUR), results in bleaching of leaf litter, but the importance of bleaching in decomposition processes on forest soil has not been fully evaluated. The aims of this study were to elucidate the occurrence of bleached area in decomposing leaf litter and to compare chemical composition between bleached and nonbleached portions in a subtropical forest in Japan. Field incubation of leaf litter was performed over an 18-month period with the litterbag method. The decomposition processes during the first 9 month were characterized by the relatively rapid mass loss and increase of bleached area, whereas the mass loss was slowed down and the bleached area decreased thereafter. Mass loss of leaf tissues was faster and AUR content was lower in bleached than in nonbleached portions, indicating the acceleration of mass loss in bleached leaf tissues by the selective decomposition of recalcitrant compounds. The decrease in carbonyl-C in the bleached portions was associated with the increase of extractable nitrogen. The results suggest that the bleaching plays a dominant role in the transformation and turnover of organic compounds and nitrogen in decomposing leaf litter.Takashi OsonoSyuntaro HiradateSatoru HobaraNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Takashi Osono Syuntaro Hiradate Satoru Hobara Bleaching of leaf litter accelerates the decomposition of recalcitrant components and mobilization of nitrogen in a subtropical forest
description	Abstract Selective removal of lignin and other recalcitrant compounds, collectively registered as acid-unhyrolyzable residue (AUR), results in bleaching of leaf litter, but the importance of bleaching in decomposition processes on forest soil has not been fully evaluated. The aims of this study were to elucidate the occurrence of bleached area in decomposing leaf litter and to compare chemical composition between bleached and nonbleached portions in a subtropical forest in Japan. Field incubation of leaf litter was performed over an 18-month period with the litterbag method. The decomposition processes during the first 9 month were characterized by the relatively rapid mass loss and increase of bleached area, whereas the mass loss was slowed down and the bleached area decreased thereafter. Mass loss of leaf tissues was faster and AUR content was lower in bleached than in nonbleached portions, indicating the acceleration of mass loss in bleached leaf tissues by the selective decomposition of recalcitrant compounds. The decrease in carbonyl-C in the bleached portions was associated with the increase of extractable nitrogen. The results suggest that the bleaching plays a dominant role in the transformation and turnover of organic compounds and nitrogen in decomposing leaf litter.
format	article
author	Takashi Osono Syuntaro Hiradate Satoru Hobara
author_facet	Takashi Osono Syuntaro Hiradate Satoru Hobara
author_sort	Takashi Osono
title	Bleaching of leaf litter accelerates the decomposition of recalcitrant components and mobilization of nitrogen in a subtropical forest
title_short	Bleaching of leaf litter accelerates the decomposition of recalcitrant components and mobilization of nitrogen in a subtropical forest
title_full	Bleaching of leaf litter accelerates the decomposition of recalcitrant components and mobilization of nitrogen in a subtropical forest
title_fullStr	Bleaching of leaf litter accelerates the decomposition of recalcitrant components and mobilization of nitrogen in a subtropical forest
title_full_unstemmed	Bleaching of leaf litter accelerates the decomposition of recalcitrant components and mobilization of nitrogen in a subtropical forest
title_sort	bleaching of leaf litter accelerates the decomposition of recalcitrant components and mobilization of nitrogen in a subtropical forest
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d6e80c2d10514526bc37b70b7bb28232
work_keys_str_mv	AT takashiosono bleachingofleaflitteracceleratesthedecompositionofrecalcitrantcomponentsandmobilizationofnitrogeninasubtropicalforest AT syuntarohiradate bleachingofleaflitteracceleratesthedecompositionofrecalcitrantcomponentsandmobilizationofnitrogeninasubtropicalforest AT satoruhobara bleachingofleaflitteracceleratesthedecompositionofrecalcitrantcomponentsandmobilizationofnitrogeninasubtropicalforest
_version_	1718392407239688192

Bleaching of leaf litter accelerates the decomposition of recalcitrant components and mobilization of nitrogen in a subtropical forest

Ejemplares similares