Research progress on adventitious roots of sand-fixing shrubs in arid desert regions

doi:10.7522/j.issn.1000-694X.2025.00354

Journal of Desert Research ›› 2026, Vol. 46 ›› Issue (1): 219-228.DOI: 10.7522/j.issn.1000-694X.2025.00354

Research progress on adventitious roots of sand-fixing shrubs in arid desert regions

Jiayi Liu¹^,²(), Weicheng Luo¹(), Wenzhi Zhao¹, Bin Guo³, Hai Zhou¹, Heng Ren¹

^1.Gansu Linze National Field Scientific Observation and Research Station of Farmland Ecosystem / State Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands，Northwest Institute of Eco-Environment and Resources，Chinese Academy of Sciences，Lanzhou 730000，China
^2.University of Chinese Academy of Sciences，Beijing 100049，China
^3.College of Forestry，Gansu Agricultural University，Lanzhou 730070，China

Received:2025-11-23 Revised:2025-12-25 Online:2026-01-20 Published:2026-03-09
Contact: Weicheng Luo

Abstract

Abstract:

Sand-fixing shrubs are vital components of desert ecosystems in arid and semi-arid regions， playing significant roles in combating aeolian sand erosion and preserving biodiversity. Adventitious roots are roots that develop from non-root tissues， such as stems. The growth of adventitious roots is directly linked to plant water and nutrient use efficiency， habitat adaptability， and the success of clonal propagation. Consequently， adventitious root formation is thought to be a crucial strategy for sand-fixing shrubs to cope with water and nutrient stress as well as disturbances caused by aeolian sand activity in desert ecosystems. Research on the formation and developmental mechanisms， morphological characteristics， and ecological functions of adventitious roots in sand-fixing shrubs has received increasing attention worldwide， and notable progress has been made in recent years. However， a systematic and comprehensive synthesis of existing findings remains limited. This paper systematically reviews current findings on the developmental mechanisms， architectural characteristics， and environmental roles of adventitious roots in sand-fixing shrubs， revealing that adventitious roots generally exhibit high plasticity and possess strong water and nutrient uptake capacities， serving as a critical adaptation strategy to stressors such as drought and sand burial. Furthermore， the development of adventitious roots is directly linked to the clonal reproduction in clonal sand-fixing shrubs， playing an essential role in natural regeneration and population maintenance and expansion of sand-fixing shrubs under extreme habitats. Nevertheless， against the backdrop of intensifying global change， key questions regarding the developmental mechanisms， ecological functions， and plant-soil feedbacks of adventitious roots in sand-fixing shrubs remain unresolved. Therefore， future research urgently needs to prioritize long-term， multi-species， and multi-scale monitoring of adventitious roots in sand-fixing shrubs across sandy habitats. By integrating modern techniques such as isotope tracing， genomics， and transcriptomics， studies should aim to elucidate the molecular regulatory mechanisms of adventitious root development under various environmental stresses and clarify their critical roles in plant water and nutrient absorption. This will contribute to advancing the theoretical framework of desert belowground ecology and provide a scientific basis for vegetation establishment， management， and ecological restoration in arid desert regions.

Key words: sand-fixing shrubs, adventitious roots, developmental mechanism, ecological function, environmental regulation

CLC Number:

Jiayi Liu, Weicheng Luo, Wenzhi Zhao, Bin Guo, Hai Zhou, Heng Ren. Research progress on adventitious roots of sand-fixing shrubs in arid desert regions[J]. Journal of Desert Research, 2026, 46(1): 219-228.

Figures/Tables 4

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调控机制	调控因子	功能及作用机制	参考文献
植物激素	生长素(IAA)	调控基因表达，促进细胞分裂分化，诱导根原基形成，促使不定根产生	[26-28]
	细胞分裂素(CK)	与生长素拮抗，高浓度抑制根原基形成	[26-27,31]
	乙烯(ET)	诱导皮层细胞死亡，形成通气组织，帮助根原基细胞产生，但可能在不定根诱导后期负向调控	[26,30-31]
	独脚金内酯(SL)	促进单子叶植物不定根伸长，植物受养分胁迫或机械损伤时，调控根系发育	[31]
	茉莉酸(JA)	负向调控，过表达茉莉酸的负向调节因子可以促进植物产生更长、更多的不定根	[26,31]
	脱落酸(ABA)	对水稻冠根生长有抑制作用	[27,31]
	赤霉素(GA)	通常抑制不定根发育，但其和乙烯一起可促进皮层细胞死亡，促进不定根出现	[26-27,31]
转录因子	WOX家族(WOX10/WOX11)	受生长素调控，建立根原基细胞	[32-34]
	LBD家族(AtLBD18)	调控不定根的发生	[32]
	ARF家族(AtARF4/AtARF6)	参与木质部中柱鞘细胞的启动	[6,35]
	OsPLT家族(OsPLT1/OsPLT2)	OsPLT1正向调控不定根和侧根的起始和生长，OsPLT2控制侧根的形成但不影响不定根的发育	[36]
	miR156	维持植物的高可塑性，使植物保持较强的根系再生能力，以应对不确定的环境资源	[37]
蛋白质	过氧化物酶	诱导不定根形成，参与植物的各种生理过程，如抗氧化防御和木质素的形成等	[38]
	多酚氧化酶	主要集中在根原基形成区，影响细胞分裂分化和根原基的启动	[39]
	吲哚乙酸氧化酶	氧化和降解IAA，调节内源激素的含量，帮助触发和启动植物根原基	[40]

调控机制	调控因子	功能及作用机制	参考文献
植物激素	生长素(IAA)	调控基因表达，促进细胞分裂分化，诱导根原基形成，促使不定根产生	[26-28]
	细胞分裂素(CK)	与生长素拮抗，高浓度抑制根原基形成	[26-27,31]
	乙烯(ET)	诱导皮层细胞死亡，形成通气组织，帮助根原基细胞产生，但可能在不定根诱导后期负向调控	[26,30-31]
	独脚金内酯(SL)	促进单子叶植物不定根伸长，植物受养分胁迫或机械损伤时，调控根系发育	[31]
	茉莉酸(JA)	负向调控，过表达茉莉酸的负向调节因子可以促进植物产生更长、更多的不定根	[26,31]
	脱落酸(ABA)	对水稻冠根生长有抑制作用	[27,31]
	赤霉素(GA)	通常抑制不定根发育，但其和乙烯一起可促进皮层细胞死亡，促进不定根出现	[26-27,31]
转录因子	WOX家族(WOX10/WOX11)	受生长素调控，建立根原基细胞	[32-34]
	LBD家族(AtLBD18)	调控不定根的发生	[32]
	ARF家族(AtARF4/AtARF6)	参与木质部中柱鞘细胞的启动	[6,35]
	OsPLT家族(OsPLT1/OsPLT2)	OsPLT1正向调控不定根和侧根的起始和生长，OsPLT2控制侧根的形成但不影响不定根的发育	[36]
	miR156	维持植物的高可塑性，使植物保持较强的根系再生能力，以应对不确定的环境资源	[37]
蛋白质	过氧化物酶	诱导不定根形成，参与植物的各种生理过程，如抗氧化防御和木质素的形成等	[38]
	多酚氧化酶	主要集中在根原基形成区，影响细胞分裂分化和根原基的启动	[39]
	吲哚乙酸氧化酶	氧化和降解IAA，调节内源激素的含量，帮助触发和启动植物根原基	[40]

Research progress on adventitious roots of sand-fixing shrubs in arid desert regions

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