Effects of Different Temperature Conditions on Yield and Physiological Properties of Rice (Oryza Sativa L.)

He, Lili; Chen, Y L; Zhang, T T; Zheng, A X; Cheng, Yang; Du, Peng; Lai, Rifang; Lu, Ronghai; Luo, Haowen; Liu, Y F; Tang, Xin

doi:10.15666/aeer/1701_199211

Cited by 15 publications

(6 citation statements)

References 30 publications

(31 reference statements)

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“…Because of under those stresses, the proline in fragrant rice was primarily synthesized by the glutamic acid pathway. This idea about NT condition causing stress is supported by the lower activities of SOD, POD, and CAT and the higher content of MDA in the no-tillage treatment compared to the rotary tillage treatment in present study because MDA production in an important indicator of oxidative stress and SOD could dismutase superoxide radical whereas POD and CAT could scavenge H 2 O 2 [21, 35]. Furthermore, the decreased grain yield and nitrogen accumulation also indicated that fragrant rice under the no-tillage condition experienced decreased growth and development compared to that under CK and PT conditions.…”

Section: Discussionmentioning

confidence: 53%

Different tillage induces regulation in 2-acetyl-1-pyrroline biosynthesis in direct-seeded fragrant rice

Luo

et al. 2019

BMC Plant Biol

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Background Land preparation is an important component of fragrant rice production. However, the effect of tillage on fragrant rice production is unclear, especially regarding the biosynthesis of 2-acetyl-1-pyrroline (2-AP), which is the main compound of the unique aroma of fragrant rice. This study aimed to explore 2-AP biosynthesis in fragrant rice under different tillage regimes. Three tillage methods were applied in the present study: conventional rotary tillage (CK) as the control, plough tillage (PT), and no-tillage (NT). Result Compared with CK, the PT treatment increased 2-AP content in grain, upregulated the activity of ornithine aminotransferase (OAT) and increased contents of 1-pyrroline and pyrroline-5-carboxylic acid (P5C). Furthermore, the PT treatment increased the grain yield and nitrogen accumulation of fragrant rice. Meanwhile, the 2-AP content in the grain produced under the NT treatment was significantly higher than that in the grain produced under both the PT and CK treatments due to the enhancement of proline content and the activities of proline dehydrogenase (PDH) and △1-pyrroline-5-carboxylic acid synthetase (P5CS). However, the present study observed that the overall production of fragrant rice under NT conditions was inferior due to lower yield, nitrogen accumulation, and anti-oxidative enzymatic activities. Moreover, the organic matter content and soil microorganism quantity increased due to PT and NT treatments. Conclusions Compared to CK, PT improved fragrant rice grain yield and nitrogen accumulation and induced an increase in OAT activity and led to an increase in 2-AP concentration. No-tillage also produced increased 2-AP content in grain by enhancing PDH and P5CS activities but limited yields and nitrogen accumulation in fragrant rice.

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Section: Discussionmentioning

confidence: 53%

Different tillage induces regulation in 2-acetyl-1-pyrroline biosynthesis in direct-seeded fragrant rice

Luo

et al. 2019

BMC Plant Biol

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“…Yuxiangyouzhan, the super rice, is not sensitive to low temperatures during the seedling stage and has high seed yields, as well as other positive attributes 59,60 . Xiangyaxiangzhan, a non-super rice, can withstand increased temperatures (21/15 °C, 27/21 °C, 33 °C/27 °C), and its photosynthesis and synthesis of photosynthetic pigments are enhanced 61 ; this cultivar is sensitive to low temperatures and has a low survival rate 62 . Moreover, Yuxiangyouzhan has a higher heat resistance than does Xiangyaxiangzhan 63 .…”

Section: Methodsmentioning

confidence: 99%

Responses of plant growth, physiological, gas exchange parameters of super and non-super rice to rhizosphere temperature at the tillering stage

Jiang

Wang

et al. 2019

Sci Rep

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Temperature is one of the critical factors affecting rice growth and yield production. This study investigated the effects of rhizosphere temperature at the tillering stage on the growth, physiological parameters and gas exchange attributes of two rice cultivars, i.e., the super rice cultivar Yuxiangyouzhan and the non-super rice cultivar Xiangyaxiangzhan, under hydroponic conditions. Three rhizosphere temperature treatments, i.e., a low-rhizosphere-temperature treatment (LT, nutrient solution at 17.5 ± 1.5 °C), an ambient-temperature treatment (AT, nutrient solution at 27.5 ± 1.5 °C), and a high-rhizosphere-temperature treatment (HT, nutrient solution at 37.5 ± 1.5 °C), were applied in this study. The results showed significant differences in most of the rice growth and physiological and gas exchange parameters as a result of cultivar and rhizosphere temperature as well as their interaction. In addition, the marked reduction in total dry weight was positively correlated with a notable reduction in plant morphological parameters, such as the fresh and dry weight of the leaves and stem sheaths, and changes in gas exchange parameters. Moreover, antioxidant reactions were active in response to high and low rhizosphere temperatures, which varied in different plant tissues. These results suggested that the super and non-super rice were sensitive to high and low rhizosphere temperatures, respectively.

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“…A stronger antioxidant system in rice ensures stable rice production stabilization. Furthermore, chlorophyll biosynthesis and gas exchange for photosynthesis are affected by the environment [20,24] while higher antioxidant enzyme activity can better maintain the stability of cells and ensure the progress of various physiological activities [25,26]. Therefore, we deduced that the application of La might protect chlorophyll biosynthesis in aromatic rice by increasing the activities of antioxidant enzymes and that this would enhance photosynthesis and dry matter accumulation and finally increase grain yield.…”

Section: Discussionmentioning

confidence: 99%

“…At the tillering stage (20 days after transplanting), booting stage (40 days after transplanting), heading stage (60 days after transplanting), grain-filling stage (75 days after transplanting) and maturity stage (90 days after transplanting, also 1 day before harvesting) in the second and third experiments, the net photosynthetic rate was determined with the portable photosynthesis system (LI-6400, LI-COR, USA) according to the method described by Luo et al (2019). At the same time, a 'SPAD-502' SPAD meter (Konica Minolta, Japan) was used to perform a precise, rapid and nondestructive estimation of the leaf chlorophyll contents.…”

Section: Determination Of Net Photosynthetic Rate Chlorophyll Content and Dry Matter Accumulationmentioning

confidence: 99%

Lanthanum (La) improves growth, yield formation and 2-acetyl-1-pyrroline biosynthesis in aromatic rice (Oryza sativa L.)

Luo

Chen

et al. 2021

BMC Plant Biol

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Background Lanthanum (La) is a rare earth element that can influence plant growth and development. However, the effect of La on growth, yield formation and 2-acetyl-1-pyrroline (2-AP, a key compound responsible for the aroma of rice) biosynthesis in aromatic rice (Oryza sativa L. subsp. japonica Kato) has not been reported. Therefore, the present study investigated the effects of La on growth, photosynthesis, yield formation and 2-AP biosynthesis in aromatic rice through three experiments. Results Two pot experiments and a two-year field trial were conducted with different rates of La application (20–120 LaCl3 mg kg−1 and 12 kg ha−1 LaCl3), and treatments without La application were used as controls. The results showed that the application of LaCl3 at 80 and 100 mg kg−1 and at 12 kg ha−1 greatly increased the 2-AP content (by 6.45–43.03%) in aromatic rice seedlings and mature grains compared with the control. The La treatments also increased the chlorophyll content, net photosynthetic rate and total aboveground biomass of rice seedlings. Higher antioxidant enzyme (superoxide, peroxidase, and catalase) activity was detected in the La treatments than in the control. The La treatments also increased the grain yield, grain number per panicle and seed-setting rate of aromatic rice relative to the control. Moreover, the grain proline and γ-aminobutyric acid contents and the activity of betaine aldehyde dehydrogenase significantly decreased under the La treatment. The application of La to soil enhanced the activity of proline dehydrogenase by 20.62–56.95%. Conclusions La improved the growth, yield formation and 2-AP content of aromatic rice and enhanced 2-AP biosynthesis by increasing the conversion of proline to 2-AP and decreasing the conversion of GABald to GABA.

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Effects of Different Temperature Conditions on Yield and Physiological Properties of Rice (Oryza Sativa L.)

Cited by 15 publications

References 30 publications

Different tillage induces regulation in 2-acetyl-1-pyrroline biosynthesis in direct-seeded fragrant rice

Different tillage induces regulation in 2-acetyl-1-pyrroline biosynthesis in direct-seeded fragrant rice

Responses of plant growth, physiological, gas exchange parameters of super and non-super rice to rhizosphere temperature at the tillering stage

Lanthanum (La) improves growth, yield formation and 2-acetyl-1-pyrroline biosynthesis in aromatic rice (Oryza sativa L.)

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