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THE STRATEGIES OF MORPHOLOGY, REPRODUCTION AND CARBOHYDRATE METABOLISM OF Hydrilla verticillata (Linn.f.) Royle IN FLUCTUATING WATERS
Wei, Hua1,3; Cheng, Shuiping2; Tang, Haibin1,3; He, Feng1; Liang, Wei1; Wu, Zhenbin1,3; Wu, ZB (reprint author), Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China.
2013
Source PublicationFRESENIUS ENVIRONMENTAL BULLETIN
ISSN1018-4619
Volume22Issue:9Pages:2590-2596
AbstractHydrilla verticillata (Linn.f.) Royle is usually employed as a pioneer species for vegetation replanting in China. The morphology, reproduction and carbohydrate storage of H. verticillata were examined at different water depth gradients (30, 60, 90, 120 and 150 cm) in an outdoor mesocosm with 10-week experiment duration. The results indicated that H. verticillata could acclimatize itself to different water depths and conditions via physiological and morphological changes in the life history. However, in different water depth, the strategies of morphology acclimations, reproduction and carbohydrate metabolism showed various states, and some significant differences were detectable between them in most measured indexes. The relative growth rate (RGR) of the plants increased with water depth until 120 cm, which were 74.1 +/- 2.5 mg.g(-1).d(-1) dry weight (DW) and 68.6 +/- 2.2 mg.g(-1).d(-1) DW at 120 and 90 cm water levels. The number of ramets and shoots, especially the flowering buds number & biomass, which is important for colonization and the maintenance of macrophyte populations, were relatively higher at 90 cm water level. Among the three different non-structural carbohydrates (soluble sugar, reducing sugar and starch) measured, which can increase the ability of the plant to re-grow, or survive time periods of seasonal dormancy, H. verticillata in 90 cm water depth allocated and stored significantly higher contents of starch and soluble sugar (P<0.05). Consequently, 90 cm would be the optimal water depth for the growth of H. verticillata compared with the other levels.; Hydrilla verticillata (Linn.f.) Royle is usually employed as a pioneer species for vegetation replanting in China. The morphology, reproduction and carbohydrate storage of H. verticillata were examined at different water depth gradients (30, 60, 90, 120 and 150 cm) in an outdoor mesocosm with 10-week experiment duration. The results indicated that H. verticillata could acclimatize itself to different water depths and conditions via physiological and morphological changes in the life history. However, in different water depth, the strategies of morphology acclimations, reproduction and carbohydrate metabolism showed various states, and some significant differences were detectable between them in most measured indexes. The relative growth rate (RGR) of the plants increased with water depth until 120 cm, which were 74.1 +/- 2.5 mg.g(-1).d(-1) dry weight (DW) and 68.6 +/- 2.2 mg.g(-1).d(-1) DW at 120 and 90 cm water levels. The number of ramets and shoots, especially the flowering buds number & biomass, which is important for colonization and the maintenance of macrophyte populations, were relatively higher at 90 cm water level. Among the three different non-structural carbohydrates (soluble sugar, reducing sugar and starch) measured, which can increase the ability of the plant to re-grow, or survive time periods of seasonal dormancy, H. verticillata in 90 cm water depth allocated and stored significantly higher contents of starch and soluble sugar (P<0.05). Consequently, 90 cm would be the optimal water depth for the growth of H. verticillata compared with the other levels.
SubtypeArticle
KeywordVegetation Replanting Water Level Fluctuation Hydrilla Verticillata (Linn.f.) Royle Morphology Acclimation Biomass Production Carbohydrate Metabolism
Department[Wei, Hua; Tang, Haibin; He, Feng; Liang, Wei; Wu, Zhenbin] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Cheng, Shuiping] Tongji Univ, Key Lab Yangtze River Water Environm, Minist Educ, Shanghai 200092, Peoples R China; [Wei, Hua; Tang, Haibin; Wu, Zhenbin] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationMajor Science and Technology Program for Water Pollution Control and Treatment [2009ZX07106-003, 2011ZX07303-001] ; Major Science and Technology Program for Water Pollution Control and Treatment [2009ZX07106-003, 2011ZX07303-001] ; Major Science and Technology Program for Water Pollution Control and Treatment [2009ZX07106-003, 2011ZX07303-001] ; Major Science and Technology Program for Water Pollution Control and Treatment [2009ZX07106-003, 2011ZX07303-001]
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000326911700014
WOS KeywordLIGHT REQUIREMENTS ; GROWTH ; DEPTH ; MACROPHYTE ; ALLOCATION ; BIOMASS ; RESTORATION ; PLANTS ; LAKES
Funding OrganizationMajor Science and Technology Program for Water Pollution Control and Treatment [2009ZX07106-003, 2011ZX07303-001] ; Major Science and Technology Program for Water Pollution Control and Treatment [2009ZX07106-003, 2011ZX07303-001] ; Major Science and Technology Program for Water Pollution Control and Treatment [2009ZX07106-003, 2011ZX07303-001] ; Major Science and Technology Program for Water Pollution Control and Treatment [2009ZX07106-003, 2011ZX07303-001]
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/19782
Collection水环境工程研究中心_期刊论文
Corresponding AuthorWu, ZB (reprint author), Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Tongji Univ, Key Lab Yangtze River Water Environm, Minist Educ, Shanghai 200092, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Wei, Hua,Cheng, Shuiping,Tang, Haibin,et al. THE STRATEGIES OF MORPHOLOGY, REPRODUCTION AND CARBOHYDRATE METABOLISM OF Hydrilla verticillata (Linn.f.) Royle IN FLUCTUATING WATERS[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2013,22(9):2590-2596.
APA Wei, Hua.,Cheng, Shuiping.,Tang, Haibin.,He, Feng.,Liang, Wei.,...&Wu, ZB .(2013).THE STRATEGIES OF MORPHOLOGY, REPRODUCTION AND CARBOHYDRATE METABOLISM OF Hydrilla verticillata (Linn.f.) Royle IN FLUCTUATING WATERS.FRESENIUS ENVIRONMENTAL BULLETIN,22(9),2590-2596.
MLA Wei, Hua,et al."THE STRATEGIES OF MORPHOLOGY, REPRODUCTION AND CARBOHYDRATE METABOLISM OF Hydrilla verticillata (Linn.f.) Royle IN FLUCTUATING WATERS".FRESENIUS ENVIRONMENTAL BULLETIN 22.9(2013):2590-2596.
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