Elevated CO2 reduces the drought effect on nitrogen metabolism in barley plants during drought and subsequent recovery

Robredo, Anabel; Pérez‐López, Usue; Miranda-Apodaca, Jon; Lacuesta, M.; Mena‐Petite, Amaia; Muñoz‐Rueda, Alberto

doi:10.1016/j.envexpbot.2011.02.011

Cited by 66 publications

(72 citation statements)

References 69 publications

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“…As the major transport agent, and given its central role in many physiological processes, such as mineral nutrition (Lemaire and Denoix, 1987), water availability determines the entire N biogeochemical cycle and, ultimately, its availability for plant production (Ruffo et al, 2006). Nitrogen absorption by crops is automatically reduced under dry conditions, even when mineral N is present in the root zone Ferrario-Mery et al, 1998;GonzalezDugo et al, 2005;Xu et al, 2006;Robredo et al, 2011;Chen et al, 2015). Our research results support the findings of other researchers.…”

Section: N O N -C O M M E R C I a L U S E O N L Ysupporting

confidence: 83%

Evaluation of critical nitrogen and phosphorus models for maize under full and limited irrigation conditions

Djaman

Irmak

2017

Ital J Agronomy

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Proper nitrogen (N) fertiliser application rates and timing of application, coupled with optimum irrigation management can improve the sustainability of maize production and reduce the risk of environmental contamination by nutrients. The impact of full and limited irrigation and rainfed conditions on in-season maize (Zea mays L.) shoot biomass nutrient concentration and critical N and phosphorus (P) indices were evaluated using a combination of measured nutrients and critical N and P models in south central Nebraska in 2009 and 2010. Four irrigation treatments [fully-irrigated treatment (FIT), 75% FIT, 60% FIT and 50% FIT) and rainfed] were imposed. Irrigation regimes impacted the shoot biomass N concentration. The shoot biomass N concentration was above the critical N (Ncrit) concentration throughout the growing season under FIT and 75% FIT and was below the Ncrit value for the most limited irrigation (60% FIT and 50% FIT) and rainfed treatments. Nitrogen nutrient index (NNI) varied from 0.68 to 2.0. Biomass N concentration was below Ncrit [i.e., NNI<1] from 105 days after planting (DAP) to harvest under rainfed and 50% FIT and from 114 DAP to harvest under 60% FIT. Overall, the FIT and the 75% FIT had NNI values greater than 1.0 throughout both growing seasons. Phosphorus concentration, which decreased with biomass accumulation and irrigation amounts, varied from 1.0 to 4.8 g kg -1 , with FIT having the highest biomass P concentration. The critical N model combined with NNI can be used to evaluate N and P in maize for in-season nutrient diagnosis under the conditions presented in this research.

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Section: N O N -C O M M E R C I a L U S E O N L Ysupporting

confidence: 83%

Evaluation of critical nitrogen and phosphorus models for maize under full and limited irrigation conditions

Djaman

Irmak

2017

Ital J Agronomy

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“…will seriously damage plant cells (Thomas and Hilker 2000), thus it needs to be assimilated immediately through the GS/GOGAT cycle and/or the GDH pathway (Suzuki and Knaff 2005;Robredo et al 2011). However, short-term drought depressed GS/ GOGAT activities in dwarf bamboo (Fig.…”

Section: Changes In Carbon Metabolism During Drought and Recoverymentioning

confidence: 99%

“…Drought generally reduces the uptake of available N and inhibits N-related enzymes activities in plants (Xu and Zhou 2006;Robredo et al 2011). However, long-term drought enhanced NO 3 -concentration in dwarf bamboo, being associated in turn with a increased NR activity in the present study (Table 3), which has been documented in drought-tolerant tomato cultivar (Zarina) (Sánchez-Rodríguez et al 2011).…”

Section: Changes In Carbon Metabolism During Drought and Recoverymentioning

confidence: 99%

“…There are many indications that the velocity of recovery after relief from drought and the turning point between fast and slow recovery depend on plant species as well as stress intensity and duration (Flexas et al 2006;Robredo et al 2011). However, very little research is done in physiological and biochemical recovery of semi-woody plants after drought.…”

Section: Introductionmentioning

confidence: 99%

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Photosynthetic carbon and nitrogen metabolism and the relationship between their metabolites and lipid peroxidation in dwarf bamboo (Fargesia rufa Yi) during drought and subsequent recovery

Liu

Wang

Pan

et al. 2015

Trees

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Key message Differential regulations of C and N metabolism in dwarf bamboo improve the capacity of osmotic adjustment, and also their metabolites may play an important role for protection against membrane lipid peroxidation under drought, thus accelerating recovery after rewatering. Abstract Dwarf bamboo (Fargesia rufa Yi), is a staple food for the endangered giant panda, but little is known about the impact of drought on bamboo species and its recovery mechanism. This study investigated the response of carbon (C) and nitrogen (N) metabolism to drought and subsequent recovery, and the relationship of their metabolites with lipid peroxidation. Photochemistry was reversibly down-regulated after drought, but a longer recovery time is needed. The accelerated degradation of starch due to a rapid increase in amylase activity resulted in higher soluble sugar only in severe drought-stressed plants after 30 days of drought. Sucrose content was not affected by drought because of the relative increases in activities of invertase, sucrose synthase, and sucrose phosphate synthase. As nitrate concentration increased in parallel with nitrate reductase activity, ammonium (NH 4 ? ) production was enhanced by drought. Also, activated glutamine synthetase/glutamate synthase cycle stimulated NH 4? assimilation, while hydrolysis of soluble proteins was accelerated, resulting in accumulation of amino acids. After rewatering, re-balancing of C metabolism has gradually begun, but a stronger N metabolism was still observed. The notable positive correlations between MDA and the contents of starch and proline after 15 days of drought as well as between MDA and the contents of soluble sugar, NSC and proline after 30 days of drought were displayed. We conclude that dwarf bamboo may not only differently regulate its C and N metabolism to improve the capacity of osmotic adjustment but also employ its different metabolites protect against membrane Communicated by M. Adams.

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“…The metabolism of plants under dark conditions is suppressed under high CO 2 levels, compared to normal atmospheric conditions (Mathooko, 1996a(Mathooko, , 1996bRobredo et al, 2011). Mathooko (1996b) suggested that CO 2 directly affected the glycolytic pathway in the metabolism of stored fresh produce.…”

Section: Discussionmentioning

confidence: 99%

Combination of low oxygen and high carbon dioxide treatmentsalters sprouting of white asparagus

Kitazawa¹,

Hasegawa²,

Nagata³

et al. 2016

Turk J Agric For

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A single cropping system with 1-year-old rootstocks by forcing culture has been proposed for white asparagus (Asparagus officinalis) production in Japan. To develop a method to control the sprouting period for such a cropping system, we investigated the effects of low oxygen (O 2 ), high carbon dioxide (CO 2 ), and a combination of these on the sprouting of asparagus spears, using a laboratory-scale test. We stored the rootstocks without soil for 6 weeks in six treatment conditions (20% O 2 , control; 20% O 2 + 8% CO 2 ; 20% O 2 + 16% CO 2 ; 8% O 2 ; 8% O 2 + 8% CO 2 ; and 8% O 2 + 16% CO 2 ). After storage, we planted the rootstocks in pots with soil and investigated their yield performance for 20 weeks. Only the 8% O 2 + 16% CO 2 treatment applied during rootstock storage suppressed the sprouting of spears. The number of harvested spears and the yield of spears per plant in the 8% O 2 + 16% CO 2 treatment was higher than in control at the 16-20-week period, although the weight per spear did not differ. We suggest that the extension of sprouting after planting was due to the suppression of sprouting during rootstock storage. Our results suggest that controlling atmospheric O 2 and CO 2 concentrations around the rootstock during storage could be a new, effective method to alter the harvest period of white asparagus, including cultivation of fresh asparagus in a single cropping system with forcing culture.

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Elevated CO2 reduces the drought effect on nitrogen metabolism in barley plants during drought and subsequent recovery

Cited by 66 publications

References 69 publications

Evaluation of critical nitrogen and phosphorus models for maize under full and limited irrigation conditions

Evaluation of critical nitrogen and phosphorus models for maize under full and limited irrigation conditions

Photosynthetic carbon and nitrogen metabolism and the relationship between their metabolites and lipid peroxidation in dwarf bamboo (Fargesia rufa Yi) during drought and subsequent recovery

Combination of low oxygen and high carbon dioxide treatmentsalters sprouting of white asparagus

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