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Leaf silicon accumulation rates in relation to light environment and shoot growth rates in paper mulberry (Broussonetia papyrifera, Moraceae)

Journal of plant research, 2021-09, Vol.134 (5), p.1013-1020 [Peer Reviewed Journal]

The Botanical Society of Japan 2021 ;The Botanical Society of Japan 2021. ;ISSN: 0918-9440 ;EISSN: 1618-0860 ;DOI: 10.1007/s10265-021-01326-z

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Title:
Leaf silicon accumulation rates in relation to light environment and shoot growth rates in paper mulberry (Broussonetia papyrifera, Moraceae)
Author: Kajino, Hirofumi ; Kitajima, Kaoru
Subjects: Accumulation ; Age ; Availability ; Biomedical and Life Sciences ; Broussonetia papyrifera ; Environmental factors ; Growing season ; Growth rate ; Hypotheses ; Leaves ; Life Sciences ; Microenvironments ; Plant Biochemistry ; Plant Ecology ; Plant Physiology ; Plant Sciences ; Plant species ; Plants ; Regular Paper – Ecology/Ecophysiology/Environmental Biology ; Shoots ; Silicon ; Species ; Transpiration ; Variation
Is Part Of: Journal of plant research, 2021-09, Vol.134 (5), p.1013-1020
Description: While increasing numbers of studies report wide variations of leaf silicon (Si) accumulation among plant species, within-species variations of leaf Si accumulation have scarcely been examined for tree species. As in crop plants, environmental factors that affect transpiration rates may influence passive transpiration-dependent transport of Si uptake in trees. Here, we tested a hypothesis that leaf Si accumulation rate should be higher in shoots that receive more light and thus achieve faster growth, using Broussonetia papyrifera, a pioneer tree species with successive leaf production and Si accumulation with leaf age. We marked individual leaves weekly throughout the growing season (June–September), and measured Si concentration and light availability in relation to the chronosequence of leaf age in September. In shoots that continued growing and successively produced leaves throughout the growing season, leaf Si content increased linearly with leaf age. In support of our hypothesis, leaf Si accumulation rate varied widely among shoots with positive correlations with shoot growth and light availability. In conclusion, both leaf age and microenvironment affect within-species variations in leaf Si concentration of this species, a moderate Si accumulator.
Publisher: Singapore: Springer Singapore
Language: English
Identifier: ISSN: 0918-9440
EISSN: 1618-0860
DOI: 10.1007/s10265-021-01326-z
Source: ProQuest Central

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Leaf silicon accumulation rates in relation to light environment and shoot growth rates in paper mulberry (Broussonetia papyrifera, Moraceae)

The Botanical Society of Japan 2021 ;The Botanical Society of Japan 2021. ;ISSN: 0918-9440 ;EISSN: 1618-0860 ;DOI: 10.1007/s10265-021-01326-z

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