The Role of Xylem Parenchyma in the Storage and Utilization of Nonstructural Carbohydrates
The Role of Xylem Parenchyma in the Storage and Utilization of Nonstructural Carbohydrates
复制标题
木质部薄壁组织在非结构碳水化合物储存和利用中的作用
DOI:
10.1007/978-3-319-15783-2_8
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
Jansen S.
中科院分区:
文献类型:
--
作者:
Plavcová L;Jansen S.
Ray and axial parenchyma cells are inherent components of secondary xylem in almost all woody plants. The proportion of wood parenchyma ranges typically between 5 and 10 % in gymnosperms and between 20 and 40 % in angiosperms. However, even higher proportions can be found in some angiosperms, particularly in the tropics. The role of xylem parenchyma in storage is often highlighted, with nonstructural carbohydrates (NSC) representing the most abundant reserves.The NSC concentration in sapwood exhibits large differences across tree species and between different woody organs (roots, trunks, and branches). It is reasonable to expect that the potential to store NSC scales positively with the amount of ray and axial parenchyma in wood. Sapwood NSC exhibit complex dynamics throughout the season. This temporal variation in NSC concentration and their partitioning into starch and soluble sugars is closely tied to the physiological activity of ray and axial parenchyma cells.In this chapter, we review our current knowledge of variation in ray and axial parenchyma anatomy and physiology and link it with NSC dynamics in wood. A better understanding of NSC accumulation patterns as driven by the parenchyma structure and physiology can be useful for estimating the total pool of NSC stored in forests and for predicting its dynamics under changing environmental conditions. Moreover, such synthesis can help to elucidate potential advantages associated with having high versus low wood parenchyma content.
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DOI:
--
发表时间:
1942
期刊:
Holz als Roh- und Werkstoff
影响因子:
--
作者:
A. Frey;H. Aeberli
通讯作者:
H. Aeberli
DOI:
--
发表时间:
1956
期刊:
影响因子:
--
作者:
F. H. Taylor
通讯作者:
F. H. Taylor
DOI:
--
发表时间:
2000
期刊:
影响因子:
--
作者:
F. Lens;S. Jansen;E. Robbrecht;E. Smets
通讯作者:
E. Smets
影响因子:
7.4
作者:
M. Wisniewski;G. Davis;R. Arora
通讯作者:
R. Arora
DOI:
10.1163/22941932-90000414
发表时间:
1984-01-01
期刊:
IAWA BULLETIN
影响因子:
--
作者:
BRAUN, HJ
通讯作者:
BRAUN, HJ