Evidence map›Paper›PMID 40036550›Full record

ArticleAnnals of botany2025

Anatomical acclimatization and physiological mechanisms of Robinia pseudoacacia dieback in the Loess Plateau.

Qing Liu, Xiaoyang Xu, Jing Liang, Qiang Li, Guoliang Wang, Ying Liu

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Annals of botany, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Qing LiuState Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China.ORCID 0000-0001-5095-5962
Xiaoyang XuState Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China.
Jing LiangState Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China.
Qiang LiShaanxi Key Laboratory of Ecological Restoration in Shanbei Mining Area, Yulin University, Yulin, 719000, China.
Guoliang WangState Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China.
Ying LiuState Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China.

Funding

National Key Research and Development Program of China 2022YFF1300405National Natural Science Foundation of China 42007062Special Funds of the National Natural Science Foundation of China 42041005-3BState Key Program of National Natural Science of China 42130717
6 · The paper itself

Abstract

BACKGROUND AND

aimsWidespread dieback and mortality have occurred in mature artificial forests in recent decades. It is unclear how anatomical structures and physiological activities determine the dieback and even mortality of the canopy.

methodsWe analysed the variation in anatomical structure, hydraulic function and non-structural carbohydrates among canopy levels along the drought gradient.

resultsWe found that, first, Robinia pseudoacacia coordinated hydraulic efficiency and safety by increasing the vessel diameter and vestured overlap and by decreasing the total pit membrane area in xylem with increasing drought stress. Second, the hydraulic conductivity within the canopy gradually decreased from the bottom to the upper canopy, whereas embolism increased. As precipitation decreases, the upper twigs might dieback first owing to hydraulic failure, accompanied by a substantial reduction (~2.20 % total dry mass) in soluble sugar and starch within these branches. Third, although the upper canopy branches did not reach the hydraulic safety margin, the soluble sugar and starch contents reduced significantly (~1.59 % total dry mass). Meanwhile, the content of non-structural carbohydrates in other canopy tissues increased to cope with drought stress.

conclusionsIn conclusion, dieback of upper canopy twigs might be a result of hydraulic failure, while the non-structural carbohydrates of the branches in the upper canopy decreased, which can be viewed as an adjustment of carbon allocation and avoidance of water loss at the whole-tree level, contributing to plant survival under drought stress.

Indexed as

AcclimatizationRobiniaDroughtsWaterXylemWaterDroughthydraulic architecturehydraulic failuremortality mechanismnon-structural carbohydrate

Identifiers

PMID40036550
PMCPMC12358023

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