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Acta Horticulturae Sinica ›› 2021, Vol. 48 ›› Issue (7): 1409-1417.doi: 10.16420/j.issn.0513-353x.2021-0526

• Research Papars • Previous Articles     Next Articles

Anatomical Observation on Clove Formation and Development of Garlic

LIU Zhuoya1, LIU Xiuhui2, JIA Huixia1, SONG Jiangping1, LI Xixiang1, ZHAO Danqi1, ZHANG Xiaohui1, YANG Wenlong1, WANG Haiping1,*()   

  1. 1Institute of Vegetables and Flowers,Chinese Academy of Agricultural Sciences/Key Laboratory of Horticultural Crop Biology and Germplasm Creation in the Ministry of Agriculturen and Rural Affairs,Beijing 100081,China
    2Zhejiang Academy of Agricultural Sciences,Hangzhou 310021,China
  • Received:2021-06-02 Revised:2021-07-21 Online:2021-07-25 Published:2021-08-10
  • Contact: WANG Haiping E-mail:wanghaiping@caas.cn

Abstract:

In the present study,the process of garlic(Allium sativum)clove development was observed and analyzed through freehand anatomy and paraffin embedded. The morphological observation showed that there were three stages,including the pre-differentiation stage,differentiationstage and expansion stage for clove development before mature. At the pre-differentiation stage,the leaf primordia with typical tunica-corpus structure was formed. At the differentiation stage,small clove formed. The location of small clove formation was related to the location of meristematic cell mass. The internal growth points of the formed scale clove continued to differentiate with the accumulation of clove material. At the expansion stage,the chromosomes in the meristematic nuclei were active,starch grains were accumulated in the meristematic cell mass and the vessels had developed well in xylem. To observe the tissue histochemical changes,PAS staining was carried out on the sections from different parts of the clove at the differentiation stage. The content of sugar granules was rich,the cytoplasm was dense and the staining was dark. The concentration gradient of sugar granules existed between the meristematic cells and their surrounding cells.

Key words: garlic, Allium sativum, clove development, anatomical observation, histochemistry analysis

CLC Number: