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Acta Prataculturae Sinica ›› 2022, Vol. 31 ›› Issue (8): 211-220.DOI: 10.11686/cyxb2021274

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Research progress on regulation mechanism of rhizome development in herbaceous plants of the Poaceae

Jia-lin LI1(), Sheng-lin JIANG2(), Yun-xia LI2, Xiao-yan QUAN1, Wen-bo WANG1, Qiu-li SHAN1, Chun-juan XIE1, Ning YIN1, Yu-xiang QIN1, Li-hua ZHANG1, Hong-mei LI1, Wen-xing HE1()   

  1. 1.School of Biological Science and Technology,University of Jinan,Jinan 250022,China
    2.Laizhou City Laiyu Chemical Co. ,LTD,Laizhou 261400,China
  • Received:2021-07-20 Revised:2021-09-14 Online:2022-08-20 Published:2022-07-01
  • Contact: Sheng-lin JIANG,Wen-xing HE

Abstract:

Rhizomes are creeping underground stems that serve as vegetative organs for clonal growth of perennial grasses and other monocots. The continuous differentiation and lateral extension of rhizomes endow rhizomatous grasses with strong abilities of horizontal expansion, migration and resistance to disturbance, which play important roles in both the formation of natural grassland species associations and the improvement of fragile ecosystems such as degraded grasslands, deserts, sand dunes. The differentiation and development of rhizomes is a complicated process co-regulated by internal factors and external stimuli. In this review, the recent research literature on the rhizomatous growth and development of grasses was systematically summarized. The regulation and response factors of rhizomatous growth and development were identified from the perspectives of habitat heterogeneity, plant hormone factors and related genes. This provides a theoretical framework for further research on the development of rhizomes and thus guides thinking on spatial expansion of rhizomatous grasses and the logic of ecological adaptation.

Key words: Poaceous grasses, rhizomes, plant hormones, gene regulation