ArticleBMC plant biology2023
Drought- and soil substrate-induced variations in root nonstructural carbohydrates result from fine root morphological and anatomical traits of Juglans mandshurica seedlings.
Article in BMC plant biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 13 citations in OpenAlex.
- Nutrient-mediated tree growth responses are governed by internal resource allocation: intra-organ water-carbon trade-offs and inter-organ carbon concentration gradient.Tree physiology · 2026Article
- Root-Specific Signal Modules Mediating Abiotic Stress Tolerance in Fruit Crops.Plants (Basel, Switzerland) · 2026Review
- Responses of biomass and non-structural carbohydrates to soil moisture gradient of two Carex species in an alpine meadow in Southeast Qinghai-Xizang Plateau.BMC plant biology · 2025Article
- How do arbuscular mycorrhizal fungi enhance drought resistance of Leymus chinensis?BMC plant biology · 2025Article
- Variation in Root Biomass and Distribution Based on the Topography, Soil Properties, and Tree Influence Index: The Case of Mt. Duryun in Republic of Korea.Plants (Basel, Switzerland) · 2024Article
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6 authors at 3 institutions in 2 countries.
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Abstract
backgroundNonstructural carbohydrates (NSCs) reflect the carbon supply status and affect the construction and development of plants. Previous studies have focused on the dynamics of NSCs among plant organs, however, few studies have paid attention to the synergistic variations between fine root traits and NSCs under drought based on the perspective of branch order roots. This study aims to explore the responses of fine root traits and NSCs among root orders of Juglans mandshurica seedlings under different drought intensities and soil substrates. The 2-year-old J. mandshurica potted seedlings were planted in three different soil substrates (humus, loam and sandy-loam soil) and subjected to four drought intensities (CK, mild drought T1, moderate drought T2 and severe drought T3) for 60 days.
resultsThe root biomass of seedlings in sandy-loam soil under the same drought intensity was higher than that of seedlings in humus soil. With an increase in drought, the root biomass, average diameter, root tissue density and cortex thickness decreased significantly, and the specific root length, stele diameter and conduit density increased. The root NSC contents in humus soil were higher than those in sandy-loam soil. The fine root soluble sugar content in all soil substrates decreased with increasing drought intensity, while the root starch and total NSC contents varied among the different soil substrates. Compared with transportive roots, the morphological and anatomical traits jointly explained the higher variation in NSC contents of the absorptive roots. The anatomical traits explained the higher variation in the NSC content of first five order roots.
conclusionOur results suggest that coordinated adaptation of the root traits and NSCs of Manchurian walnut seedlings exposed to water gradients in different soil substrates.
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