The effect of irradiance and water restriction on photosynthesis in young jatobá-do-cerrado ( Hymenaea stigonocarpa ) plants
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| 024 | 7 | 0 | |a 10.1007/s11099-015-0085-6 |2 doi |
| 035 | |a (NATIONALLICENCE)springer-10.1007/s11099-015-0085-6 | ||
| 245 | 0 | 4 | |a The effect of irradiance and water restriction on photosynthesis in young jatobá-do-cerrado ( Hymenaea stigonocarpa ) plants |h [Elektronische Daten] |c [A. Costa, S. Rezende-Silva, C. Megguer, L. Moura, M. Rosa, A. Silva] |
| 520 | 3 | |a High irradiance promotes decreases in the quantum yield in plants, which reduce the photosynthetic rate. The excess of light in combination with water deficit can intensify the response of plants to stress, especially in species susceptible to those factors. The aim of the present study was to characterize the photosynthetic activity of young jatobá-do-cerrado (Hymenaea stigonocarpa Mart. ex Hayne) trees under different irradiance conditions, both alone and/or in combination with water deficit. Four irradiances [45, 230, 510, and 1,700 μmol(photon) m−2 s−1] and two levels of water in soil (90% and 50% of field capacity) were used. Gas exchange, water potential, and chlorophyll a fluorescence were measured. The highest rates of photosynthesis were observed under irradiances of 230 and 510 μmol(photon) m−2 s−1. Irradiance of 1,700 μmol(photon) m−2 s−1 led to the photoinhibition of photosynthesis, as indicated by a reduced maximum quantum yield of PSII, effective quantum yield ratio, and electron transport rate, as well as higher nonphotochemical quenching. The most stressful to young H. stigonocarpa plants was high irradiance, while water deficit did not intensify the response to light stress. | |
| 540 | |a The Institute of Experimental Botany, 2015 | ||
| 690 | 7 | |a Brazil savanna |2 nationallicence | |
| 690 | 7 | |a luminosity |2 nationallicence | |
| 690 | 7 | |a photoinhibition |2 nationallicence | |
| 690 | 7 | |a water potential |2 nationallicence | |
| 690 | 7 | |a C i/ C a : ratio of intercellular and ambient concentration of CO2 |2 nationallicence | |
| 690 | 7 | |a Chl : chlorophyll |2 nationallicence | |
| 690 | 7 | |a E : transpiration rate |2 nationallicence | |
| 690 | 7 | |a ETR : electron transport rate |2 nationallicence | |
| 690 | 7 | |a Fm : maximal fluorescence yield of the dark-adapted state |2 nationallicence | |
| 690 | 7 | |a F0 : minimal fluorescence yield of the dark-adapted state |2 nationallicence | |
| 690 | 7 | |a Fv : variable fluorescence |2 nationallicence | |
| 690 | 7 | |a Fv/Fm : maximal quantum yield of PSII photochemistry |2 nationallicence | |
| 690 | 7 | |a FC : field capacity |2 nationallicence | |
| 690 | 7 | |a g s : stomatal conductance |2 nationallicence | |
| 690 | 7 | |a LF : full sun [1,700 μmol(photon) m−2 s−1] |2 nationallicence | |
| 690 | 7 | |a L45, L230, and L510 : irradiances of 45, 230, and 510 μmol(photon) m−2 s−1, respectively |2 nationallicence | |
| 690 | 7 | |a P N : net photosynthetic rate |2 nationallicence | |
| 690 | 7 | |a NPQ : nonphotochemical quenching |2 nationallicence | |
| 690 | 7 | |a qP : photochemical quenching coefficient |2 nationallicence | |
| 690 | 7 | |a VPD : vapor pressure deficient |2 nationallicence | |
| 690 | 7 | |a ΔF/Fm′ : effective quantum yield of PSII photochemistry |2 nationallicence | |
| 690 | 7 | |a Ψw : water potential |2 nationallicence | |
| 700 | 1 | |a Costa |D A. |u Laboratório de Ecofisiologia e Produtividade Vegetal, Instituto Federal de Educação, Ciência e Tecnologia Goiano — Campus Rio Verde, Caixa Postal 66, 75901-970, Rio Verde, GO, Brazil |4 aut | |
| 700 | 1 | |a Rezende-Silva |D S. |u Laboratório de Ecofisiologia e Produtividade Vegetal, Instituto Federal de Educação, Ciência e Tecnologia Goiano — Campus Rio Verde, Caixa Postal 66, 75901-970, Rio Verde, GO, Brazil |4 aut | |
| 700 | 1 | |a Megguer |D C. |u Laboratório de Ecofisiologia e Produtividade Vegetal, Instituto Federal de Educação, Ciência e Tecnologia Goiano — Campus Rio Verde, Caixa Postal 66, 75901-970, Rio Verde, GO, Brazil |4 aut | |
| 700 | 1 | |a Moura |D L. |u Laboratório de Ecofisiologia e Produtividade Vegetal, Instituto Federal de Educação, Ciência e Tecnologia Goiano — Campus Rio Verde, Caixa Postal 66, 75901-970, Rio Verde, GO, Brazil |4 aut | |
| 700 | 1 | |a Rosa |D M. |u Laboratório de Ecofisiologia e Produtividade Vegetal, Instituto Federal de Educação, Ciência e Tecnologia Goiano — Campus Rio Verde, Caixa Postal 66, 75901-970, Rio Verde, GO, Brazil |4 aut | |
| 700 | 1 | |a Silva |D A. |u Departamento de Biologia Vegetal, Ed. CCBII, Universidade Federal de Viçosa, Campus Universitário, Av. P. H. Rolfs s/n, 36570-900, Viçosa, MG, Brazil |4 aut | |
| 773 | 0 | |t Photosynthetica |d The Institute of Experimental Biology of the Czech Academy of Sciences |g 53/1(2015-03-01), 118-127 |x 0300-3604 |q 53:1<118 |1 2015 |2 53 |o 11099 | |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s11099-015-0085-6 |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/s11099-015-0085-6 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Costa |D A. |u Laboratório de Ecofisiologia e Produtividade Vegetal, Instituto Federal de Educação, Ciência e Tecnologia Goiano — Campus Rio Verde, Caixa Postal 66, 75901-970, Rio Verde, GO, Brazil |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Rezende-Silva |D S. |u Laboratório de Ecofisiologia e Produtividade Vegetal, Instituto Federal de Educação, Ciência e Tecnologia Goiano — Campus Rio Verde, Caixa Postal 66, 75901-970, Rio Verde, GO, Brazil |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Megguer |D C. |u Laboratório de Ecofisiologia e Produtividade Vegetal, Instituto Federal de Educação, Ciência e Tecnologia Goiano — Campus Rio Verde, Caixa Postal 66, 75901-970, Rio Verde, GO, Brazil |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Moura |D L. |u Laboratório de Ecofisiologia e Produtividade Vegetal, Instituto Federal de Educação, Ciência e Tecnologia Goiano — Campus Rio Verde, Caixa Postal 66, 75901-970, Rio Verde, GO, Brazil |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Rosa |D M. |u Laboratório de Ecofisiologia e Produtividade Vegetal, Instituto Federal de Educação, Ciência e Tecnologia Goiano — Campus Rio Verde, Caixa Postal 66, 75901-970, Rio Verde, GO, Brazil |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Silva |D A. |u Departamento de Biologia Vegetal, Ed. CCBII, Universidade Federal de Viçosa, Campus Universitário, Av. P. H. Rolfs s/n, 36570-900, Viçosa, MG, Brazil |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Photosynthetica |d The Institute of Experimental Biology of the Czech Academy of Sciences |g 53/1(2015-03-01), 118-127 |x 0300-3604 |q 53:1<118 |1 2015 |2 53 |o 11099 | ||