Micro-morphology of Leaf Abaxial Epidermis of Beckmanniaand Related Genera

Ding Xin,Li Jianxia,Ding Liangxia and Xu Chongmei

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Chinese Agricultural Science Bulletin ›› 2016, Vol. 32 ›› Issue (12) : 116-123. DOI: 10.11924/j.issn.1000-6850.casb16010072

Micro-morphology of Leaf Abaxial Epidermis of Beckmanniaand Related Genera

  • Ding Xin, Li Jianxia, Ding Liangxia, Xu Chongmei
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Abstract

In order to infer the systematic position of Beckmannia, the slides were made by epidermal maceration by sodium hypochlorite method, and the micro-morphology of leaf abaxial epidermis of Beckmannia and related genera was observed with light microscope. The results indicated that the lower epidermis of leaves of Beckmanniaand related genera, Aveneae and Poeae plants were typical Festuca type, and had higher consistence. Intercostal long cells were mostly long cylinder with more straight cell walls and few undulating cell walls. The short-cells distributed frequently or rarely in intercostal zonation. The prickles and short-cells distributed in costal zone. The stomatal apparatus had 2-3 rows mostly. The subsidiary cells were parallel, and few subsidiary cells were low dome-shaped. The micro-morphology of leaf abaxial epidermis suggested that Beckmanniashould not be placed in Chlorideae. Meanwhile, Aveneae and Poeae had arbitrary boundaries and should be combined into the broader Poeae, and Beckmannia was appropriate to place in the broader Poeae.

Key words

Beckmannia; related genera; abaxial leaf epidermis

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Ding Xin,Li Jianxia,Ding Liangxia and Xu Chongmei. Micro-morphology of Leaf Abaxial Epidermis of Beckmanniaand Related Genera. Chinese Agricultural Science Bulletin. 2016, 32(12): 116-123 https://doi.org/10.11924/j.issn.1000-6850.casb16010072

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