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  • Wang, Shuqiong  (4)
  • Biodiversity Research  (4)
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  • Biodiversity Research  (4)
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  • 1
    Online Resource
    Online Resource
    Source and sink activity of Holcus lanatus in response to absolute and relative supply of nitrogen and phosphorus
    CSIRO Publishing ; 2021
    In:  Functional Plant Biology Vol. 48, No. 5 ( 2021), p. 493-
    Details
    In: Functional Plant Biology, CSIRO Publishing, Vol. 48, No. 5 ( 2021), p. 493-
    Abstract: Mineral nutrients influence photosynthesis and tissue formation; a shift from nitrogen (N)-limited to phosphorus (P)-limited growth induced by high N deposition may change plant growth in terms of physiology and morphology. This experiment showed that absolute and relative N and P supply affected net photosynthesis (source activity) and biomass formation (sink activity), and the relationship between source and sink activities of Holcus lanatus L. under various nutrient treatments. H. lanatus was grown at three N:P ratios (5, 15, 45) with two absolute supply levels of N and P. Between N:P 5 at low level and N:P 45 at high level, and between N:P 45 at low level and N:P 5 at high level, there was a nine-fold difference in N and P supply. Maximum light-saturated net photosynthesis rate (Amax), specific leaf area (SLA), leaf area, and shoot and root biomass were determined during and after the growth process. Amax was minimal at N:P 5 and increased only with increasing absolute N supply. Neither SLA nor leaf area were affected by N:P; increasing absolute P supply significantly increased leaf area. Shoot and root biomass were minimal at N:P 45 and increased dramatically with increasing absolute P supply. Plant biomass was not correlated with Amax. Our results highlight that H. lanatus growth is predominantly controlled by P supply and to a lesser extent by N, whereas net photosynthesis exerted no apparent control on growth under these sink-limited growth conditions. Our findings contribute to understanding of plant growth under sink-limited conditions.
    Type of Medium: Online Resource
    ISSN: 1445-4408
    URL: Article
    DOI: 10.1071/FP20118
    Language: English
    Publisher: CSIRO Publishing
    Publication Date: 2021
    SSG: 12
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  • 2
    Online Resource
    Online Resource
    Sexual reproduction traits of Holcus lanatus L. and Parnassia palustris L. in response to absolute and relative supply of nitrogen and phosphorus
    Elsevier BV ; 2019
    In:  Environmental and Experimental Botany Vol. 168 ( 2019-12), p. 103813-
    Details
    In: Environmental and Experimental Botany, Elsevier BV, Vol. 168 ( 2019-12), p. 103813-
    Type of Medium: Online Resource
    ISSN: 0098-8472
    URL: Article
    DOI: 10.1016/j.envexpbot.2019.103813
    RVK:
    WA 15000
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2019
    detail.hit.zdb_id: 1497561-0
    SSG: 12
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  • 3
    Online Resource
    Online Resource
    Sexual reproduction trait expressions of grassland species along a gradient of nitrogen: phosphorus stoichiometry
    Springer Science and Business Media LLC ; 2022
    In:  Plant and Soil Vol. 473, No. 1-2 ( 2022-04), p. 215-234
    Details
    In: Plant and Soil, Springer Science and Business Media LLC, Vol. 473, No. 1-2 ( 2022-04), p. 215-234
    Abstract: Plant investment in sexual reproduction is affected by nitrogen (N): phosphorus (P) stoichiometry. It has been suggested that an important adaptation to strong P limitation is reduced investment in sexual reproduction. We aim to investigate the specific influence of N:P on sexual reproduction performance within and between grassland species. Methods Eleven grassland species were selected in ten plots covering N limitation, co-limitation and P limitation. Nutrients in soil and above-ground biomass were determined, plus soil pH and soil moisture. A range of sexual reproduction traits were measured as a proxy for investment in sexual reproduction. Results At the intraspecific level: compared with N-limited plots, in P-limited/co-limited plots, flowering time was later, flowering period in individuals was shorter, and number of flowers (inflorescences) per individual was smaller. At the interspecific level, in P-limited/co-limited plots, species had a significantly earlier flowering time and a longer seed stalk and seed panicle, than those in N-limited plots. However, flowering period was shorter and number of flowers (inflorescences) per individual was smaller under P limitation/co-limitation. Moreover, significant correlations between soil pH and soil moisture, and sexual reproduction performance of the selected grassland species were also found. Conclusions P limitation/co-limitation restrict the sexual reproduction of grassland species, which may hamper their dispersal capacity. We recommend future studies further analyze the relationship between soil pH and N:P stoichiometry and the influence of soil pH, as well as soil moisture on sexual reproduction performance of grassland species in addition to analyzing N:P stoichiometry.
    Type of Medium: Online Resource
    ISSN: 0032-079X , 1573-5036
    URL: Article
    DOI: 10.1007/s11104-021-05230-2
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2022
    detail.hit.zdb_id: 1478535-3
    detail.hit.zdb_id: 208908-7
    SSG: 12
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  • 4
    Online Resource
    Online Resource
    Influence of parental nitrogen : phosphorus stoichiometry on seed characteristics and performance of Holcus lanatus L. and Parnassia palustris L.
    Springer Science and Business Media LLC ; 2021
    In:  Plant Ecology Vol. 222, No. 10 ( 2021-10), p. 1129-1142
    Details
    In: Plant Ecology, Springer Science and Business Media LLC, Vol. 222, No. 10 ( 2021-10), p. 1129-1142
    Abstract: Nitrogen (N) and phosphorus (P) availability affect plant sexual reproduction performance. Seed as the main product of sexual reproduction is expected to be affected by N and P availability in parent plant. We experimentally test how parental N:P stoichiometry affected seed characteristics and performance of two grassland species. Seeds of a common species ( Holcus lanatus ) and an endangered species ( Parnassia palustris ) were collected from parent plants under two different N:P ratio growth conditions in a grassland reserve in the Netherlands. We measured the following traits of the two species from the two parental N:P ratio growth conditions: seed N concentration and content, seed P concentration and content, seed length, seed area, seed weight, seed germination, and offspring survival. No significant inter-location difference was found in seed weight of the collected seeds for either of the two species. However, the stronger P-limited conditions at the locations of the parent plants affected seed length and seed area negatively in H. lanatus and positively in P. palustris . Stronger P-limited conditions also decreased seed P concentration and content and increased seed N:P ratio of H. lanatus , but no inter-location nutrient difference was found in seeds of P. palustris . Surprisingly, contrary to what could be expected from seed P concentration and content there was no inter-location difference in seed germination for H. lanatus . For P. palustris , stronger P-limited conditions in the parental environment significantly enhanced seed germination, whereas stronger P-limited conditions in the offspring environment decreased offspring survival, suggesting that P limitation may negatively affect P. palustris rejuvenation. Our results suggest the possibility of different influences of parental N:P ratio and especially of P limitation on seed characteristics and performance of a common and an endangered species.
    Type of Medium: Online Resource
    ISSN: 1385-0237 , 1573-5052
    URL: Article
    DOI: 10.1007/s11258-021-01166-w
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2021
    detail.hit.zdb_id: 1364679-5
    detail.hit.zdb_id: 1479167-5
    SSG: 12
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