Control of turion germination in Potamogeton crispus

Yongxing, Jian; Li, Bo; Wang, Jianbo; Chen, Jiakuan

doi:10.1016/s0304-3770(02)00165-1

Cited by 47 publications

(54 citation statements)

References 13 publications

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“…Sediment anoxia and light complexly regulated the turion germination and early growth of P. crispus, which was similar to the results of some submerged macrophyte species (e.g., Zostera marina, Myriophyllum spicatum) in early reports (Chambers & Kalff, 1985;Goodman et al, 1995). Differently, Jian et al (2003) suggested that substrate conditions had no influence on turion germination. A possible explanation for the disparity may be that the three substrate types they applied were far more oxic than the eutrophic sediment we used.…”

Section: Discussionsupporting

confidence: 78%

“…Symbols represent mean (±SE, n = 3). The four levels of sediment anoxia are: Control, low sediment anoxia (LA), median sediment anoxia (MA) and high sediment anoxia (HA); the three light levels are: 1, 10 and 50% natural light intensity natural light conditions than under dark condition (Sastroutomo, 1981;Jian et al, 2003), indicating that its turion germination is a light-demanding process. Even though light is required for germination, sprout growth, root biomass, and photosynthesis rates were all highest under intermediate light conditions.…”

Section: Discussionmentioning

confidence: 99%

“…The rate and percentage of turion germination of P. crispus were higher under natural light conditions than under dark conditions (Jian et al, 2003). Kadono (1982) also found that a light treatment was necessary for turion germination, and for the subsequent stages of opening of leaf segments, elongation of the new axis, and root development.…”

Section: Introductionmentioning

confidence: 98%

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Effects of sediment anoxia and light on turion germination and early growth of Potamogeton crispus

Cheng

Liang

et al. 2009

Hydrobiologia

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Potamogeton crispus is a cosmopolitan aquatic species and is widely used as a pioneer species for vegetation restoration of eutrophic lakes. However, many restoration projects applying P. crispus turions have not been successful. Earlier studies focused on effects of light and temperature on turion germination. The purpose of this study was to determine whether sediment anoxia and light interactively affected the turion germination and early growth of P. crispus. Anoxic conditions in the experiment were produced by adding sucrose to the sediment. The germination rate of the turions was 68-73% lower in the highly anoxic condition treatment than in the control. Medium light intensity (10% of natural light at the water surface) was more favorable for germination under slightly anoxic conditions than either low or high light intensity. The growth of newly-formed sprouts was also significantly inhibited by sediment anoxia. Photosynthesis and shoot biomass were reduced under sediment anoxia, whereas total chlorophyll content, root biomass, and soluble protein content were highest in the low anoxic condition treatment. Medium light improved net photosynthesis and biomass production of the sprouts. We conclude that turion germination and sprout growth can be significantly inhibited by sediment anoxia. Medium light intensity may alleviate this inhibition by anoxia, but light has little effect when sediment anoxia is severe. For the purposes of vegetation restoration, more attention should be paid to the role of sediment anoxia, and it is necessary to improve sediment and light conditions for turion germination and early growth of P. crispus in eutrophic lakes. These results will contribute to a more complete understanding of turion germination dynamics of P. crispus and will be useful for future restoration programs.

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Section: Discussionsupporting

confidence: 78%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

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Effects of sediment anoxia and light on turion germination and early growth of Potamogeton crispus

Cheng

Liang

et al. 2009

Hydrobiologia

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“…The reasons for the considerable variation between tanks may be that the initial numbers of P. crispus propagules in each tank were small and may have differed, also, the turion sprouting time can vary significantly (Jian et al, 2003), and finally turion age may be a factor (Heuschele and Gleason, 2014). As our turion were buried in the sediment, we could not establish their age.…”

Section: P Crispus Stoichiometrymentioning

confidence: 96%

Effects of warming on Potamogeton crispus growth and tissue stoichiometry in the growing season

et al. 2016

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a b s t r a c tIncreased water temperature due to climate change may affect macrophyte phenology and nutrient content. In experimentally heated mesocosms the emergence and growth of Potamogeton crispus shoots under ambient and increased temperatures (+4.5 • C) were tracked over 55 days. At the end of the experiment we measured the C, N and P content of the P. crispus leaves. The results indicate that warming advanced the emergence of P. crispus shoots by approximately 10 days, whereas the final number of shoots and plant biomass were similar in ambient and heated tanks. Furthermore, warming influenced the ecological stoichiometry of this plant significantly. Leaf C and N content were both less in the heated tanks resulting in an increase in C:N ratios, whereas P content and C:P and N:P ratios were not affected.

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“…crispus is an important primary producer in freshwater ecosystems, providing good fodder source for herbivorous fishes and poultry 17 . Moreover, Wang et al 18 found that ducks fed with P. crispus could lay natural red-yolk eggs with good quality.…”

Section: Introductionmentioning

confidence: 99%

Phytochemical Screening: Antioxidant and Antibacterial Properties of <i>Potamogeton</i> Species in Order to Obtain Valuable Feed Additives

et al. 2015

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Control of turion germination in Potamogeton crispus

Cited by 47 publications

References 13 publications

Effects of sediment anoxia and light on turion germination and early growth of Potamogeton crispus

Effects of sediment anoxia and light on turion germination and early growth of Potamogeton crispus

Effects of warming on Potamogeton crispus growth and tissue stoichiometry in the growing season

Phytochemical Screening: Antioxidant and Antibacterial Properties of <i>Potamogeton</i> Species in Order to Obtain Valuable Feed Additives

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