Anatomical Types and 13C/12C Values of Assimilating Organs in 30 C4 Species from Chenopodiaceae in Xinjiang, China

doi:10.7522/j.issn.1000-694X.2013.00402

JOURNAL OF DESERT RESEARCH

2014, Vol. 34

Issue (4): 1015-1022 DOI: 10.7522/j.issn.1000-694X.2013.00402

Anatomical Types and ¹³C/¹²C Values of Assimilating Organs in 30 C₄ Species from Chenopodiaceae in Xinjiang, China

Wen Zhibin¹, Zhang Mingli^1,2

1. Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;
2. Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China

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Abstract To examine the anatomical types of leaves and assimilating shoots in Chenopodiaceae and evaluate their carbon isotope fractionation values, a total of 30 species representing 4 tribes (Atripliceae, Camphorosmeae, Suaedeae and Salsoleae) in Xinjiang were examined using light microscopy and carbon ¹³C/¹²C isotope fractionation value. There are 12 leaf anatomical types. In tribe Atripliceae, it includes two leaf anatomical types, Atriplicoid-Ⅰ and Atriplicoid-Ⅱ. The only difference between these two types is the presence or absence of hypodermis. In tribe Camphorosmeae, there are three leaf anatomical types, including Kochioid-Ⅰ type with hypodermis, Kochioid-Ⅱ type with Kranz cells forming arcs or almost a ring, and Kochioid-Ⅲ type without hypodermis. In tribe Suaedeae, it includes three leaf anatomical types, Kranz-Suaedoid-Ⅰ and Kranz-Suaedoid-Ⅱ are with hypodermis. Borszczowia aralocaspica is of the Kranz-Suaedoid-Ⅱ type, with a distinctive one layer of mesophyll cells. Kranz-Suaedoid-Ⅲ type is without hypodermis. There are four anatomical types of leaves and assimilating shoots in Salsoleae. The differences between four leaf anatomical types in Salsoleae are the presence or absence of hypodermis, the position of small peripheral vascular bundles and complete or incomplete Kranz layer. The carbon isotope fractionation values for 30 species are ranged from -11.4‰ to -14.5‰, suggestive of a possible C₄ pathway, which coincides with the leaf anatomical structures.

Key words: leaf assimilating shoot anatomical type C₄ plant Chenopodiaceae carbon isotope fractionation value Xinjiang

Received: 25 April 2013 Published: 20 July 2014

ZTFLH:

Q944.52

Corresponding Authors: 张明理（Email：zhangml@ibcas.ac.cn） E-mail: zhangml@ibcas.ac.cn



	Articles by authors
	Wen Zhibin
	Zhang Mingli

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Wen Zhibin, Zhang Mingli. Anatomical Types and ¹³C/¹²C Values of Assimilating Organs in 30 C₄ Species from Chenopodiaceae in Xinjiang, China. JOURNAL OF DESERT RESEARCH, 2014, 34(4): 1015-1022.

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http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00402 OR http://www.desert.ac.cn/EN/Y2014/V34/I4/1015

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