Root‐zone temperature affects nutrient uptake and growth of snapdragon

Hood, T. M.; Mills, Harry A.

doi:10.1080/01904169409364727

Cited by 34 publications

(32 citation statements)

References 23 publications

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“…However, at 35˚C, FeCH-R activity was minimum, representing a reduction of 52 % with respect to 25˚C (Table 1). Our results agree with those of Hood and Mills (1994), who observed that Fe uptake was lower at 36˚C than at 22˚C. This indicates that high temperatures could be inhibiting FeCH-R activity.…”

Section: Iron Metabolism In Tomato Plantssupporting

confidence: 83%

“…1, P < 0.001), representing a 52 % reduction. Similar results were found by Hood and Mills (1994) in the cultivar ‹Peoria›. Given that thermal stress can stunt growth in plants (Bharti andKhurana 1997, Grace et al 1998), and given that the lowest total biomass production occurred in our tomato plants at 35˚C this temperature may represent heat stress.…”

Section: Iron Metabolism In Tomato Plantssupporting

confidence: 72%

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Influence of temperature on biomass, iron metabolism and some related bioindicators in tomato and watermelon plants

Sánchez

Ruiz

Romero

2003

Journal of Plant Physiology

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Section: Iron Metabolism In Tomato Plantssupporting

confidence: 83%

Section: Iron Metabolism In Tomato Plantssupporting

confidence: 72%

Influence of temperature on biomass, iron metabolism and some related bioindicators in tomato and watermelon plants

Sánchez

Ruiz

Romero

2003

Journal of Plant Physiology

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“…It can be concluded that higher shoot nutrient concentration has a greater effect on plant growth at elevated RZT. Similarly, Daskalaki and Burrage (1998) reported that all nutrients [N, P, calcium (Ca), and K] uptake of cucumber could be promoted significantly when root temperature was increased from 12 C to 20 C. Hood and Mills (1994) also found RZT near 22 C produced higher growth and nutrient uptake of snapdragon (Antirrhinum majus L. 'Peoria') compared to 8 and 15…”

Section: Discussionmentioning

confidence: 97%

Effects of root-zone temperature and N, P, and K supplies on nutrient uptake of cucumber (Cucumis sativusL.) seedlings in hydroponics

Yan

Duan

Mao

et al. 2012

Soil Science and Plant Nutrition

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The nutrient uptake and allocation of cucumber (Cucumis sativus L.) seedlings at different root-zone temperatures (RZT) and different concentrations of nitrogen (N), phosphorus (P), and potassium (K) nutrients were examined. Plants were grown in a nutrient solution for 30 d at two root-zone temperatures (a diurnally Fuctuating ambient 10 C-RZT and a constant 20 C-RZT) with the aerial parts of the plants maintained at ambient temperature (10 C-30 C). Based on a Hoagland nutrient solution, seven N, P, and K nutrient concentrations were supplied to the plants at each RZT. Results showed that total plant and shoot dry weights under each nutrient treatment were significantly lower at low root-zone temperature (10 C-RZT) than at elevated root-zone temperature (20 C-RZT). But higher root dry weights were obtained at 10 C-RZT than those at 20 C-RZT. Total plant dry weights at both 10 C-RZT and 20 C-RZT were increased with increased solution N concentration, but showed different responses under P and K treatments. All estimated nutrient concentrations (N, P, and K) and uptake by the plant were obviously influenced by RZT. Low root temperature (10 C-RZT) caused a remarkable reduction in total N, P, and K uptake of shoots in all nutrient treatments, and more nutrients were accumulated in roots at 10 C-RZT than those at 20 C-RZT. N, P, and K uptakes and distribution ratios in shoots were both improved at elevated root-zone temperature (20 C-RZT). N supplies were favorable to P and K uptake at both 10 C-RZT and 20 C-RZT, with no significantly positive correlation between N and P, or N and K uptake. In conclusion, higher RZT was more beneficial to increase of plant biomass and mineral nutrient absorption than was increase of nutrient concentration. Among the three element nutrients, increasing N nutrient concentration in solution promoted better tolerance to low RZT in cucumber seedlings than increasing P and K. In addition, appropriately decreased P concentration favors plant growth.

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“…Previous studies have reported significant differences in root uptake of mineral nutrients under different root-zone temperatures (Tindall et al 1990;Hood and Mills 1994), suggesting that plant mineral nutrient acquisition is also sensitive to temperature change. Considering the primary contribution of AM fungi in providing mineral nutrients such as phosphorus and trace elements to their host plants (Smith and Read 2008), it is of interest to know whether AM fungi and night warming interactively influence plant nutrient acquisition.…”

Section: Introductionmentioning

confidence: 99%

Arbuscular mycorrhizal symbiosis can mitigate the negative effects of night warming on physiological traits of Medicago truncatula L

Sun

et al. 2014

Mycorrhiza

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Elevated night temperature, one of the main climate warming scenarios, can have profound effects on plant growth and metabolism. However, little attention has been paid to the potential role of mycorrhizal associations in plant responses to night warming, although it is well known that symbiotic fungi can protect host plants against various environmental stresses. In the present study, physiological traits of Medicago truncatula L. in association with the arbuscular mycorrhizal (AM) fungus Rhizophagus irregularis were investigated under simulated night warming. A constant increase in night temperature of 1.53°C significantly reduced plant shoot and root biomass, flower and seed number, leaf sugar concentration, and shoot Zn and root P concentrations. However, the AM association essentially mitigated these negative effects of night warming by improving plant growth, especially through increased root biomass, root to shoot ratio, and shoot Zn and root P concentrations. A significant interaction was observed between R. irregularis inoculation and night warming in influencing both root sucrose concentration and expression of sucrose synthase (SusS) genes, suggesting that AM symbiosis and increased night temperature jointly regulated plant sugar metabolism. Night warming stimulated AM fungal colonization but did not influence arbuscule abundance, symbiosis-related plant or fungal gene expression, or growth of extraradical mycelium, indicating little effect of night warming on the development or functioning of AM symbiosis. These findings highlight the importance of mycorrhizal symbiosis in assisting plant resilience to climate warming.

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Root‐zone temperature affects nutrient uptake and growth of snapdragon

Cited by 34 publications

References 23 publications

Influence of temperature on biomass, iron metabolism and some related bioindicators in tomato and watermelon plants

Influence of temperature on biomass, iron metabolism and some related bioindicators in tomato and watermelon plants

Effects of root-zone temperature and N, P, and K supplies on nutrient uptake of cucumber (Cucumis sativusL.) seedlings in hydroponics

Arbuscular mycorrhizal symbiosis can mitigate the negative effects of night warming on physiological traits of Medicago truncatula L

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