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[PMID]:29431925
[Au] Autor:Davletova NK; Ivanov AV; Tafeeva EA
[Ti] Título:[Analysis of the rationality of the water schedule in student-athletes of various specializations].
[So] Source:Gig Sanit;95(10):988-91, 2016.
[Is] ISSN:0016-9900
[Cp] País de publicação:Russia (Federation)
[La] Idioma:rus
[Ab] Resumo:The presented in the article the analysis of water schedule in student-athletes showed a low level of water consumption culture and the irrationality of the actual water schedule. According to the results of the survey revealed that 86.7% of boys-athletes and 67.2% of girls athletes were revealed to fail to keep a certain water schedule; 98.3% student-athletes are in a state of dehydration of the body. There are established correlations between the presence of dehydration of the body and symptoms such as fatigue and decreased performance (correlation coefficient 0.594, p = 0.01), the appearance of dryness in the morning on an empty stomach (correlation coefficient 0.512, p = 0.01).
[Mh] Termos MeSH primário: Atletas
Desidratação
Comportamento de Ingestão de Líquido/fisiologia
Ingestão de Líquidos
Estudantes
[Mh] Termos MeSH secundário: Desidratação/diagnóstico
Desidratação/etiologia
Desidratação/prevenção & controle
Feminino
Seres Humanos
Masculino
Federação Russa
Medicina Esportiva/métodos
Medicina Esportiva/normas
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180213
[St] Status:MEDLINE


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[PMID]:28461401
[Au] Autor:Hughes J; Hepworth C; Dutton C; Dunn JA; Hunt L; Stephens J; Waugh R; Cameron DD; Gray JE
[Ad] Endereço:Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield S10 2TN, United Kingdom (J.H., C.D., J.A.D., L.H., J.E.G.).
[Ti] Título:Reducing Stomatal Density in Barley Improves Drought Tolerance without Impacting on Yield.
[So] Source:Plant Physiol;174(2):776-787, 2017 Jun.
[Is] ISSN:1532-2548
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The epidermal patterning factor (EPF) family of secreted signaling peptides regulate the frequency of stomatal development in model dicot and basal land plant species. Here, we identify and manipulate the expression of a barley ( ) ortholog and demonstrate that when overexpressed HvEPF1 limits entry to, and progression through, the stomatal development pathway. Despite substantial reductions in leaf gas exchange, barley plants with significantly reduced stomatal density show no reductions in grain yield. In addition, HvEPF1OE barley lines exhibit significantly enhanced water use efficiency, drought tolerance, and soil water conservation properties. Our results demonstrate the potential of manipulating stomatal frequency for the protection and optimization of cereal crop yields under future drier environments.
[Mh] Termos MeSH primário: Secas
Hordeum/fisiologia
Proteínas de Plantas/genética
Estômatos de Plantas/fisiologia
[Mh] Termos MeSH secundário: Desidratação
Regulação da Expressão Gênica de Plantas
Hordeum/genética
Hordeum/crescimento & desenvolvimento
Proteínas de Plantas/metabolismo
Plantas Geneticamente Modificadas
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Proteins)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170503
[St] Status:MEDLINE
[do] DOI:10.1104/pp.16.01844


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[PMID]:28282741
[Au] Autor:Irwin C; Campagnolo N; Iudakhina E; Cox GR; Desbrow B
[Ad] Endereço:a Menzies Health Institute Queensland, School of Allied Health Sciences , Griffith University , Gold Coast , Queensland , Australia.
[Ti] Título:Effects of acute exercise, dehydration and rehydration on cognitive function in well-trained athletes.
[So] Source:J Sports Sci;36(3):247-255, 2018 Feb.
[Is] ISSN:1466-447X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:This study investigated the effects of aerobic exercise, fluid loss and rehydration on cognitive performance in well-trained athletes. Ten endurance-trained males (25 ± 5 years; 175 ± 5 cm; 70.35 ± 5.46 kg; VO , 62.95 ± 7.20 ml · kg.min ) lost ~2.5 ± 0.6% body mass via continuous cycling exercise at ~65% peak sustainable power output (60 min duration) before consuming different beverages (Water = W1 and W2, Sustagen Sport = SS, Powerade = PD) and food ad libitum on four separate occasions. Cognitive function using a four-choice reaction time task (CRT), body mass, fluid consumption volumes, urine samples and subjective ratings (alertness, concentration, energy) were obtained before and after exercise, and hourly during recovery (for 4 h). CRT latency was significantly reduced immediately after exercise compared to pre-exercise measures for all trials (W1 = -16 ± 18 ms, W2 = -22 ± 21 ms, PD = -22 ± 22 ms, SS = -19 ± 26 ms). However, this effect was short-lived with subsequent measures not different from pre-exercise values. No difference in CRT accuracy was observed at any time across all trials. Subjective ratings were not different at any time across all trials. Aerobic exercise, hypohydration or an interaction between these two may provide a small cognitive performance benefit. However, these effects are temporary and confined to the immediate post-exercise period.
[Mh] Termos MeSH primário: Cognição
Desidratação/terapia
Exercício/fisiologia
Exercício/psicologia
Hidratação
[Mh] Termos MeSH secundário: Adulto
Índice de Massa Corporal
Desidratação/fisiopatologia
Ingestão de Energia
Seres Humanos
Masculino
Tempo de Reação
Urina
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180215
[Lr] Data última revisão:
180215
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170312
[St] Status:MEDLINE
[do] DOI:10.1080/02640414.2017.1298828


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[PMID]:28463312
[Au] Autor:Guo L; Wang X; Han P; Sun W; Feng S; Ye J; Zhang Y
[Ti] Título:Observation of dehydration dynamics in biological tissues with terahertz digital holography [Invited].
[So] Source:Appl Opt;56(13):F173-F178, 2017 May 01.
[Is] ISSN:1539-4522
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:A terahertz (THz) digital holographic imaging system is utilized to investigate natural dehydration processes in three types of biological tissues, including cattle, mutton, and pork. An image reconstruction algorithm is applied to remove the diffraction influence of THz waves and further improve clarity of THz images. From THz images of different biological specimens, distinctive water content as well as dehydration features of adipose and muscle tissues are precisely distinguished. By analyzing THz absorption spectra of these samples, temporal evolution characteristics of the absorbances for adipose and muscle tissues are described and compared in detail. Discrepancies between water retention ability of different animal tissues are also discussed. The imaging technique provides a valuable measurement platform for biological sensing.
[Mh] Termos MeSH primário: Tecido Adiposo
Desidratação/diagnóstico
Holografia/métodos
Músculo Esquelético
Imagem Terahertz/métodos
[Mh] Termos MeSH secundário: Algoritmos
Animais
Bovinos
Processamento de Imagem Assistida por Computador
Ovinos
Processamento de Sinais Assistido por Computador
Suínos
Água
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
059QF0KO0R (Water)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180206
[Lr] Data última revisão:
180206
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170503
[St] Status:MEDLINE
[do] DOI:10.1364/AO.56.00F173


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[PMID]:29244820
[Au] Autor:Lee JY; Kim N; Nam RH; Sohn SH; Lee SM; Choi D; Yoon H; Kim YS; Lee HS; Lee DH
[Ad] Endereço:Departments of Internal Medicine, Seoul National University Bundang Hospital, Seoungnam, South Korea.
[Ti] Título:Probiotics reduce repeated water avoidance stress-induced colonic microinflammation in Wistar rats in a sex-specific manner.
[So] Source:PLoS One;12(12):e0188992, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The colonic response to stress is greater in female rats than in male rats. The aim of this study was to evaluate the effect of probiotics in the repeated water avoidance stress (rWAS)-induced colonic microinflammation model of Wistar rats in a sex-specific manner. The three groups (no-stress, WAS, and WAS with probiotics) were exposed to r-WAS for 1 h daily for 10 days, and Lactobacillus farciminis was administered by oral gavage for 10 days to animals in the probiotics group. The visceromotor response (VMR) to colorectal distension (CRD) was assessed using a barostat and noninvasive manometry before and after WAS exposure. Immunohistochemistry for mast cells and real-time polymerase chain reaction (RT-PCR) for detection of mucosal cytokines were performed using distal colon tissue after the animals were sacrificed. Significant reduction of VMR to CRD (visceral analgesia) was observed at 60 mmHg in the female WAS group (P = 0.045), but not in males. In addition, the female WAS with probiotics group showed a significantly lower colonic mucosal mast cell count in comparison to the female WAS group (P = 0.013), but this phenomenon was not observed in the male group. The colonic mucosal mRNA levels of interferon-γ (IFNR), tumor necrosis factor-α (TNFA), interleukin (IL) 6, and IL17 were higher in the female WAS group than in the male WAS group. The mRNA levels of IFNR, TNFA, and IL6 were significantly decreased in WAS females who received probiotics (all P < 0.050). In conclusion, rWAS is induced in a sex-specific manner. A 10-day-long treatment with L. farciminis is an effective therapy for rWAS-induced colonic microinflammation in female rates, but not in male rats.
[Mh] Termos MeSH primário: Colo/microbiologia
Desidratação/prevenção & controle
Lactobacillus/fisiologia
Probióticos/farmacologia
Estresse Psicológico/prevenção & controle
[Mh] Termos MeSH secundário: Animais
Colo/imunologia
Desidratação/imunologia
Desidratação/microbiologia
Feminino
Expressão Gênica
Interferon gama/genética
Interferon gama/imunologia
Interleucina-17/genética
Interleucina-17/imunologia
Interleucina-6/genética
Interleucina-6/imunologia
Masculino
Manometria
Mastócitos/imunologia
Mastócitos/microbiologia
RNA Mensageiro/genética
RNA Mensageiro/imunologia
Ratos
Ratos Wistar
Fatores Sexuais
Estresse Psicológico/imunologia
Estresse Psicológico/microbiologia
Fator de Necrose Tumoral alfa/genética
Fator de Necrose Tumoral alfa/imunologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Interleukin-17); 0 (Interleukin-6); 0 (RNA, Messenger); 0 (Tumor Necrosis Factor-alpha); 82115-62-6 (Interferon-gamma)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180108
[Lr] Data última revisão:
180108
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171216
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0188992


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[PMID]:28743037
[Au] Autor:Ebeed HT; Hassan NM; Aljarani AM
[Ad] Endereço:Botany and Microbiology Department, Faculty of Science, Damietta University, New Damietta 34517, Egypt. Electronic address: hebeed@du.edu.eg.
[Ti] Título:Exogenous applications of Polyamines modulate drought responses in wheat through osmolytes accumulation, increasing free polyamine levels and regulation of polyamine biosynthetic genes.
[So] Source:Plant Physiol Biochem;118:438-448, 2017 Sep.
[Is] ISSN:1873-2690
[Cp] País de publicação:France
[La] Idioma:eng
[Ab] Resumo:Polyamines (PAs) can improve drought stress tolerance in plants; however, very limited information is available on the mechanism of action of exogenous application by different methods under drought stress in wheat. The present study investigates the mechanism through which seed priming and foliar spraying with PAs protect wheat plants from drought stress. 10 days old wheat seedlings were exposed to drought stress by withholding water alone or with 100 µM PAs solutions (putrescine, Put; spermine, Spm; and mixture of Put and Spm for 10 h seed-priming or three foliar sprays during withholding water. Drought stress impaired the wheat growth and altered the osmoprotectants, endogenous PAs levels, PAs biosynthetic genes expression and weight of 1000 grains compared to the corresponding control values. Exogenously applied PAs improved cell water status, accumulated osmoprotectants and PAs and up-regulated PAs biosynthetic genes, ADC, arginine decarboxylase; DHS, deoxyhypusine synthase; ODC, ornithine decarboxylase and SAMDC, S-adenosyl methionine decarboxylase. Put significantly regulate the endogenous PAs by both methods of application, however, Spm and mixture of Put and Spm could positively regulate the endogenous PAs and the biosynthetic gene expression by foliar spraying rather than seed priming. The data provide evidence that maintenance of water economy through stabilized cellular structure is an important strategy of drought tolerance by PAs in wheat.
[Mh] Termos MeSH primário: Poliaminas Biogênicas
Regulação da Expressão Gênica de Plantas/efeitos dos fármacos
Triticum/metabolismo
[Mh] Termos MeSH secundário: Poliaminas Biogênicas/biossíntese
Poliaminas Biogênicas/farmacologia
Desidratação/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biogenic Polyamines)
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171226
[Lr] Data última revisão:
171226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170726
[St] Status:MEDLINE


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[PMID]:29184212
[Au] Autor:Ryan PJ; Ross SI; Campos CA; Derkach VA; Palmiter RD
[Ad] Endereço:Howard Hughes Medical Institute, University of Washington, Seattle, Washington, USA. philip.ryan@florey.edu.au.
[Ti] Título:Oxytocin-receptor-expressing neurons in the parabrachial nucleus regulate fluid intake.
[So] Source:Nat Neurosci;20(12):1722-1733, 2017 Dec.
[Is] ISSN:1546-1726
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Brain regions that regulate fluid satiation are not well characterized, yet are essential for understanding fluid homeostasis. We found that oxytocin-receptor-expressing neurons in the parabrachial nucleus of mice (Oxtr neurons) are key regulators of fluid satiation. Chemogenetic activation of Oxtr neurons robustly suppressed noncaloric fluid intake, but did not decrease food intake after fasting or salt intake following salt depletion; inactivation increased saline intake after dehydration and hypertonic saline injection. Under physiological conditions, Oxtr neurons were activated by fluid satiation and hypertonic saline injection. Oxtr neurons were directly innervated by oxytocin neurons in the paraventricular hypothalamus (Oxt neurons), which mildly attenuated fluid intake. Activation of neurons in the nucleus of the solitary tract substantially suppressed fluid intake and activated Oxtr neurons. Our results suggest that Oxtr neurons act as a key node in the fluid satiation neurocircuitry, which acts to decrease water and/or saline intake to prevent or attenuate hypervolemia and hypernatremia.
[Mh] Termos MeSH primário: Comportamento de Ingestão de Líquido/fisiologia
Neurônios/metabolismo
Núcleos Parabraquiais/metabolismo
Receptores de Ocitocina/fisiologia
[Mh] Termos MeSH secundário: Animais
Desidratação/psicologia
Ingestão de Alimentos/fisiologia
Hipernatremia/genética
Hipernatremia/metabolismo
Camundongos
Camundongos Endogâmicos C57BL
Optogenética
Núcleos Parabraquiais/citologia
Núcleo Hipotalâmico Paraventricular/fisiologia
Receptores de Ocitocina/genética
Solução Salina Hipertônica/farmacologia
Saciação/fisiologia
Sódio na Dieta
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (OXTR protein, mouse); 0 (Receptors, Oxytocin); 0 (Saline Solution, Hypertonic); 0 (Sodium, Dietary)
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171219
[Lr] Data última revisão:
171219
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171130
[St] Status:MEDLINE
[do] DOI:10.1038/s41593-017-0014-z


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[PMID]:29173326
[Au] Autor:Futatani T; Shimao A; Ina S; Higashiyama H; Fujita S; Ueno K; Igarashi N; Hatasaki K
[Ad] Endereço:Department of Pediatrics, Toyama Prefectural Central Hospital, Toyama, Japan. Electronic address: futatani@tch.pref.toyama.jp.
[Ti] Título:Capillary Blood Ketone Levels as an Indicator of Inadequate Breast Milk Intake in the Early Neonatal Period.
[So] Source:J Pediatr;191:76-81, 2017 Dec.
[Is] ISSN:1097-6833
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: To determine the utility of capillary blood ketone levels as an indicator of inadequate intake of breast milk in the early postnatal period. STUDY DESIGN: Levels of capillary blood beta-hydroxybutyrate (ßOHB), the main ketone body in the blood, were measured with a bedside ketone meter in 585 full-term neonates aged 48-95 hours who were breastfed exclusively. Relationships between weight-loss percentage, blood sodium, glucose, pH, partial pressure of carbon dioxide, base-deficit levels, and ßOHB levels were investigated. The diagnostic accuracy of ßOHB for predicting excessive weight loss (weight loss ≥10% of birth weight) and hypernatremic dehydration (blood sodium level ≥150 mEq/L) was determined. RESULTS: ßOHB levels were correlated positively with weight-loss percentage and blood sodium levels and were correlated negatively with blood glucose levels. The diagnostic accuracy of ßOHB was 0.846 (optimal cut off, 1.55 mmol/L; sensitivity, 80.9%, specificity, 74.0%) for predicting excessive weight loss and 0.868 (optimal cut off, 1.85 mmol/L; sensitivity, 94.3%; specificity, 69.9%) for predicting hypernatremic dehydration according to the area under the receiver operating characteristic curve. Multiple logistic analysis revealed that ßOHB and weight loss percentage were the only independent predictors of hypernatremic dehydration. Increases in ßOHB levels also were associated with worsening metabolic acidosis and hypocapnia. CONCLUSION: High ßOHB levels were associated with inadequate intake of breast milk in the early postnatal period. The use of bedside capillary blood ketone levels may be clinically useful as an indicator of dehydration, energy depletion, and acid-base imbalance in breastfeeding infants in the early postnatal period.
[Mh] Termos MeSH primário: Ácido 3-Hidroxibutírico/sangue
Desequilíbrio Ácido-Base/diagnóstico
Aleitamento Materno
Desidratação/diagnóstico
Desnutrição/diagnóstico
[Mh] Termos MeSH secundário: Desequilíbrio Ácido-Base/sangue
Desequilíbrio Ácido-Base/etiologia
Biomarcadores/sangue
Capilares
Desidratação/sangue
Desidratação/etiologia
Feminino
Seres Humanos
Cuidado do Lactente
Recém-Nascido
Modelos Logísticos
Masculino
Desnutrição/sangue
Desnutrição/etiologia
Testes Imediatos
Sensibilidade e Especificidade
Perda de Peso
[Pt] Tipo de publicação:CLINICAL TRIAL; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biomarkers); TZP1275679 (3-Hydroxybutyric Acid)
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171211
[Lr] Data última revisão:
171211
[Sb] Subgrupo de revista:AIM; IM
[Da] Data de entrada para processamento:171128
[St] Status:MEDLINE


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[PMID]:28873543
[Au] Autor:Yu Y; Jin TZ; Fan X; Wu J
[Ad] Endereço:Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing/Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, No. 133, Yihenglu, Guangzhou 510610, China.
[Ti] Título:Biochemical degradation and physical migration of polyphenolic compounds in osmotic dehydrated blueberries with pulsed electric field and thermal pretreatments.
[So] Source:Food Chem;239:1219-1225, 2018 Jan 15.
[Is] ISSN:0308-8146
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Fresh blueberries were pretreated by pulsed electric fields (PEF) or thermal pretreatment and then were subject to osmotic dehydration. The changes in contents of anthocyanins, predominantly phenolic acids and flavonols, total phenolics, polyphenol oxidase (PPO) activity and antioxidant activity in the blueberry samples during pretreatment and osmotic dehydration were investigated. Biochemical degradation and physical migration of these nutritive compounds from fruits to osmotic solutions were observed during the pretreatments and osmotic dehydration. PEF pretreated samples had the least degradation loss but the most migration loss of these compounds compared to thermally pretreated and control samples. Higher rates of water loss and solid gain during osmotic dehydration were also obtained by PEF pretreatment, reducing the dehydration time from 130 to 48h. PEF pretreated and dehydrated fruits showed superior appearance to thermally pretreated and control samples. Therefore, PEF pretreatment is a preferred technology that balances nutritive quality, appearance, and dehydration rate.
[Mh] Termos MeSH primário: Mirtilos Azuis (Planta)
[Mh] Termos MeSH secundário: Antocianinas
Fenômenos Bioquímicos
Desidratação
Frutas
Osmose
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anthocyanins)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171128
[Lr] Data última revisão:
171128
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170907
[St] Status:MEDLINE


  10 / 10739 MEDLINE  
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[PMID]:29059316
[Au] Autor:Sánchez-Gómez D; Mancha JA; Cervera MT; Aranda I
[Ad] Endereço:Instituto Regional de Investigación y Desarrollo Agroalimentario y Forestal de Castilla-La Mancha (IRIAF), Centro de Investigación Agroforestal de Albaladejito (CIAF), Carretera Toledo-Cuenca, km 174, 16194, Cuenca, Spain.
[Ti] Título:Inter-genotypic differences in drought tolerance of maritime pine are modified by elevated [CO2].
[So] Source:Ann Bot;120(4):591-602, 2017 Oct 17.
[Is] ISSN:1095-8290
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Background and Aims: Despite the importance of growth [CO 2 ] and water availability for tree growth and survival, little information is available on how the interplay of these two factors can shape intraspecific patterns of functional variation in tree species, particularly for conifers. The main objective of the study was to test whether the range of realized drought tolerance within the species can be affected by elevated [CO 2 ]. Methods: Intraspecific variability in leaf gas exchange, growth rate and other leaf functional traits were studied in clones of maritime pine. A factorial experiment including water availability, growth [CO 2 ] and four different genotypes was conducted in growth rooms. A 'water deficit' treatment was imposed by applying a cycle of progressive soil water depletion and recovery at two levels of growth [CO 2 ]: 'ambient [CO 2 ]' (aCO 2 400 µmol mol -1 ) and 'elevated [CO 2 ]' (eCO 2 800 µmol mol -1 ). Key Results: eCO2 had a neutral effect on the impact of drought on growth and leaf gas exchange of the most drought-sensitive genotypes while it aggravated the impact of drought on the most drought-tolerant genotypes at aCO2. Thus, eCO2 attenuated genotypic differences in drought tolerance as compared with those observed at aCO2. Genotypic variation at both levels of growth [CO2] was found in specific leaf area and leaf nitrogen content but not in other physiological leaf traits such as intrinsic water use efficiency and leaf osmotic potential. eCO2 increased Δ 13 C but had no significant effect on δ 18 O. This effect did not interact with the impact of drought, which increased δ 18 O and decreased Δ 13 C. Nevertheless, correlations between Δ 13 C and δ 18 O indicated the non-stomatal component of water use efficiency in this species can be particularly sensitive to drought. Conclusions: Evidence from this study suggests elevated [CO 2 ] can modify current ranges of drought tolerance within tree species.
[Mh] Termos MeSH primário: Pinus/genética
[Mh] Termos MeSH secundário: Dióxido de Carbono/metabolismo
Clorofila/metabolismo
Desidratação/genética
Desidratação/metabolismo
Desidratação/fisiopatologia
Genótipo
Nitrogênio/análise
Pressão Osmótica
Fotossíntese/fisiologia
Pinus/crescimento & desenvolvimento
Pinus/metabolismo
Pinus/fisiologia
Folhas de Planta/química
Folhas de Planta/crescimento & desenvolvimento
Folhas de Planta/metabolismo
Folhas de Planta/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
1406-65-1 (Chlorophyll); 142M471B3J (Carbon Dioxide); N762921K75 (Nitrogen)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171109
[Lr] Data última revisão:
171109
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171024
[St] Status:MEDLINE
[do] DOI:10.1093/aob/mcx080



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