Research progresses on the key enzymes involved in sucrose metabolism in maize

Ren, Xiaodong; Zhang, Junjie

doi:10.1016/j.carres.2012.10.016

Cited by 31 publications

(28 citation statements)

References 85 publications

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“…Intensive metabolism and dynamic changes of nitrogen had significant effects on quantity and quality of maize ( Ren and Zhang, 2013 ; Tian et al, 2013 ), rational control of nitrogen nutrition was directly related to higher yield and quality ( Liu et al, 2011 ; Wang et al, 2012 ; Mandal et al, 2013 ). Especially in the late growing periods, nitrogen metabolism was favorable for the differentiation of floret primordia ( Guilpart et al, 2014 ).…”

Section: Discussionmentioning

confidence: 99%

Changes in nitrogen metabolism and antioxidant enzyme activities of maize tassel in black soils region of northeast China

Lü

Xie

et al. 2014

Front. Plant Sci.

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Two varieties of maize (Zea mays L.) grown in fields in black soils of northeast China were tested to study the dynamic changes of nitrogen metabolism and antioxidant enzyme activity in tassels of maize. Results showed that antioxidant enzyme activity in tassels of maize increased first and then decreased with the growing of maize, and reached peak value at shedding period. Pattern of proline was consistent with antioxidant enzyme activity, showing that osmotic adjustment could protect many enzymes, which are important for cell metabolism. Continuous reduction of soluble protein content along with the growing of maize was observed in the study, which indicated that quantitative material and energy were provided for pollen formation. Besides, another major cause was that a large proportion of nitrogen was used for the composition of structural protein. Nitrate nitrogen concentrations of tassels were more variable than ammonium nitrogen, which showed that nitrate nitrogen was the favored nitrogen source for maize.

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Section: Discussionmentioning

confidence: 99%

Changes in nitrogen metabolism and antioxidant enzyme activities of maize tassel in black soils region of northeast China

Lü

Xie

et al. 2014

Front. Plant Sci.

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“…In the photosynthetic tissues, sucrose is synthesized by the enzyme sucrose phosphate synthase (SPS) via the consumption of uridine diphosphate glucose (UDP-G) from the Calvin cycle and fructose-6-phosphate. Then, sucrose-6-phosphate phosphatase (SPP) hydrolyzes sucrose-6-phosphate into sucrose (Figure 1) [11]. Sucrose can be exported to the apoplast and transported into the sieve element via the plasmodesmata by sucrose transporter (SUT) proteins [12].…”

Section: Introductionmentioning

confidence: 99%

Distinct Carbon and Nitrogen Metabolism of Two Contrasting Poplar Species in Response to Different N Supply Levels

Meng

Wang

Quan

et al. 2018

IJMS

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Poplars have evolved various strategies to optimize acclimation responses to environmental conditions. However, how poplars balance growth and nitrogen deficiency remains to be elucidated. In the present study, changes in root development, carbon and nitrogen physiology, and the transcript abundance of associated genes were investigated in slow-growing Populus simonii (Ps) and fast-growing Populus euramericana (Pe) saplings treated with low, medium, and high nitrogen supply. The slow-growing Ps showed a flourishing system, higher δ15N, accelerated C export, lower N uptake and assimilation, and less sensitive transcriptional regulation in response to low N supply. The slow-growing Ps also had greater resistance to N deficiency due to the transport of photosynthate to the roots and the stimulation of root development, which allows survival. To support its rapid metabolism and growth, compared with the slow-growing Ps, the fast-growing Pe showed greater root development, C/N uptake and assimilation capacity, and more responsive transcriptional regulation with greater N supply. These data suggest that poplars can differentially manage C/N metabolism and photosynthate allocation under different N supply conditions.

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“…The sucrose increase is probably due to lower invertase activity. This enzyme is responsible for sucrose degradation (Ren and Zhang, 2013), and it suffers negative interference with the water availability in plants (Tian-Hong and Shao-Hua, 2007;Geigenberger et al, 1997). The sucrose hydrolysis is fundamental in carbon metabolism.…”

Section: Discussionmentioning

confidence: 99%

Photosynthetic pigments and carbohydrates in young Brazil nut (Bertholletia excelsa H.B.K.) plants exposed to moderate and severe water deficiency

Francyneth¹,

Silva²,

Leticia³

et al. 2016

Aust J Crop Sci

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This study aimed to evaluate the photosynthetic pigments and carbon compounds in young Bertholletia excelsa H.B.K. plants (18-month-old) subjected to 6 and 12 consecutive days without irrigation, to simulate moderate and severe water deficiency. This study will also answer the contribution of the carbohydrates related to osmotic adjustment. The experimental design was a factorial entirely randomised with two water conditions (water deficit and control) and two evaluation times (6 and 12 days), resulting in a total of four measurements. In this study, we measured chlorophyll a, chlorophyll b, total chlorophyll and carotenoids, as well as total soluble carbohydrates, sucrose, starch and reducing carbohydrates. The water restriction induced decreases in all evaluated pigments. The more intense (45%) reduction was found in carotenoids after 12 days of water deficiency. Furthermore, decreases in total soluble carbohydrates and reducing carbohydrates were also observed. In contrast, increases were observed in sucrose and starch levels. The results suggest that water deficiency promotes negative alterations in photosynthetic pigments, while carbon compounds present insufficient responses, aiming to the osmotic adjustment in young B. excelsa plants exposed to water deficit.

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Research progresses on the key enzymes involved in sucrose metabolism in maize

Cited by 31 publications

References 85 publications

Changes in nitrogen metabolism and antioxidant enzyme activities of maize tassel in black soils region of northeast China

Changes in nitrogen metabolism and antioxidant enzyme activities of maize tassel in black soils region of northeast China

Distinct Carbon and Nitrogen Metabolism of Two Contrasting Poplar Species in Response to Different N Supply Levels

Photosynthetic pigments and carbohydrates in young Brazil nut (Bertholletia excelsa H.B.K.) plants exposed to moderate and severe water deficiency

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