Girdling-induced Alhagi sparsifolia senescence and chlorophyll fluorescence changes
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| 024 | 7 | 0 | |a 10.1007/s11099-015-0148-8 |2 doi |
| 035 | |a (NATIONALLICENCE)springer-10.1007/s11099-015-0148-8 | ||
| 245 | 0 | 0 | |a Girdling-induced Alhagi sparsifolia senescence and chlorophyll fluorescence changes |h [Elektronische Daten] |c [G. Tang, X. Li, L. Lin, F. Zeng, Z. Gu] |
| 520 | 3 | |a Senescence constitutes the final stage of a plant organ and tissue development and is a subject to gene control and strict regulation. By the late growing season, when Alhagi sparsifolia entered the natural senescence period, a girdling treatment was carried out on the phloem to increase the sugar content in leaves and to investigate carbohydrate-induced leaf senescence. After the semi-girdling and full-girdling treatment, organic matter could not leave leaves due to the destruction of sieve tubes. This led to constantly increasing sugar contents in leaves. Girdling was shown to greatly accelerate the senescence of plants. In girdled leaves, chlorophyll (Chl) a, Chl b, carotenoids (Car), and both ratios of Chl a/b and Chl/Car were significantly reduced. On the donor side of PSII, the oxygen-evolving complex was inhibited under high concentrations of carbohydrates, which was manifested as the emergence of the K phase in fluorescence kinetic curves. On the acceptor side of PSII, the high carbohydrate content also led to the disruption of electron transport and reduced light-use efficiency, which was manifested as a reduction in numerous fluorescence parameters. We believe that the emergence and development of plant senescence was not necessarily induced by the high content of carbohydrates, because even a decrease in the carbohydrate concentration could not stop the senescence process. Although the high content of carbohydrates in plants could induce plant senescence, this kind of senescence was likely a pathological process, including degradations of physiological functions. | |
| 540 | |a The Institute of Experimental Botany, 2015 | ||
| 690 | 7 | |a carbon |2 nationallicence | |
| 690 | 7 | |a nutrient cycling |2 nationallicence | |
| 690 | 7 | |a photosynthetic apparatus |2 nationallicence | |
| 690 | 7 | |a photosynthetic pigment |2 nationallicence | |
| 690 | 7 | |a reactive oxygen |2 nationallicence | |
| 690 | 7 | |a stress |2 nationallicence | |
| 690 | 7 | |a Car : carotenoids |2 nationallicence | |
| 690 | 7 | |a Chl : chlorophyll |2 nationallicence | |
| 690 | 7 | |a CK : control |2 nationallicence | |
| 690 | 7 | |a DM : dry mass |2 nationallicence | |
| 690 | 7 | |a FG : full-girdling |2 nationallicence | |
| 690 | 7 | |a FM : fresh mass |2 nationallicence | |
| 690 | 7 | |a Fv/Fm : maximal quantum yield of PSII photochemistry |2 nationallicence | |
| 690 | 7 | |a MDA : malondialdehyde |2 nationallicence | |
| 690 | 7 | |a M0 : approximated initial slope of the fluorescence transient |2 nationallicence | |
| 690 | 7 | |a OEC : oxygen-evolving complex |2 nationallicence | |
| 690 | 7 | |a PIabs : performance index on absorption basis |2 nationallicence | |
| 690 | 7 | |a P N : net photosynthetic rate |2 nationallicence | |
| 690 | 7 | |a Pro : proline |2 nationallicence | |
| 690 | 7 | |a PQ : plastoquinone |2 nationallicence | |
| 690 | 7 | |a QA : primary quinone acceptor of PSII |2 nationallicence | |
| 690 | 7 | |a QB : secondary quinone acceptor of PSII |2 nationallicence | |
| 690 | 7 | |a SE : standard error |2 nationallicence | |
| 690 | 7 | |a SG : semigirdling |2 nationallicence | |
| 690 | 7 | |a Sm : normalized total complementary area above the O-J-I-P transient |2 nationallicence | |
| 690 | 7 | |a Ψ0 : probability that a trapped exciton moves an electron into the electron transport chain beyond QA − (at t = 0) |2 nationallicence | |
| 690 | 7 | |a φE0 : quantum yield for electron transport (at t = 0) |2 nationallicence | |
| 700 | 1 | |a Tang |D G. |u State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 830011, Urumqi, China |4 aut | |
| 700 | 1 | |a Li |D X. |u State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 830011, Urumqi, China |4 aut | |
| 700 | 1 | |a Lin |D L. |u State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 830011, Urumqi, China |4 aut | |
| 700 | 1 | |a Zeng |D F. |u State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 830011, Urumqi, China |4 aut | |
| 700 | 1 | |a Gu |D Z. |u Xinjiang Key Laboratory of Soil and Plant Ecological Processes, College of Grassland and Environmental Sciences, Xinjiang Agricultural University, 830052, Urumqi, China |4 aut | |
| 773 | 0 | |t Photosynthetica |d The Institute of Experimental Biology of the Czech Academy of Sciences |g 53/4(2015-12-01), 585-596 |x 0300-3604 |q 53:4<585 |1 2015 |2 53 |o 11099 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s11099-015-0148-8 |q text/html |z Onlinezugriff via DOI |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 900 | 7 | |a Metadata rights reserved |b Springer special CC-BY-NC licence |2 nationallicence | |
| 908 | |D 1 |a research-article |2 jats | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-springer | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1007/s11099-015-0148-8 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Tang |D G. |u State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 830011, Urumqi, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Li |D X. |u State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 830011, Urumqi, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Lin |D L. |u State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 830011, Urumqi, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Zeng |D F. |u State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 830011, Urumqi, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Gu |D Z. |u Xinjiang Key Laboratory of Soil and Plant Ecological Processes, College of Grassland and Environmental Sciences, Xinjiang Agricultural University, 830052, Urumqi, China |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Photosynthetica |d The Institute of Experimental Biology of the Czech Academy of Sciences |g 53/4(2015-12-01), 585-596 |x 0300-3604 |q 53:4<585 |1 2015 |2 53 |o 11099 | ||