ライフサイエンスコーパス: photorespiratory

1 the Arabidopsis 5-FCL gene (At5g13050) under photorespiratory (30 and 370 micromol of CO2 mol(-1)) an

2 (30 and 370 micromol of CO2 mol(-1)) and non-photorespiratory (3200 micromol of CO2 mol(-1)) conditio

3 Under photorespiratory active conditions, the mutant accumulat

4 Two photorespiratory amino acids, glycine and serine, and my

5 enzyme responsible for the reassimilation of photorespiratory ammonia as well as for primary nitrogen

6 iscuss the significance of NADH-GOGAT in non-photorespiratory ammonium assimilation and in glutamate

7 s of photorespiratory mutants indicates that photorespiratory ammonium released in mitochondria is re

8 to chloroplastic GS2 for the assimilation of photorespiratory ammonium.

9 ndependent serine biosynthetic pathways, the photorespiratory and glycolytic phosphoserine (PS) pathw

10 per thousand ppm(-1) is largely explained by photorespiratory and mesophyll effects.

11 plants also exhibit an increase in the CO(2) photorespiratory burst and an increase in levels of phot

12 g mechanism protein M) mutant, the metabolic photorespiratory burst triggered by shifting to low CO2

13 ssed cycle is designed to function as both a photorespiratory bypass and an additional CO2-fixing pat

14 We engineered a synthetic photorespiratory bypass based on the 3-hydroxypropionate

15 ntrations) show that excess glycine from the photorespiratory C(2) cycle (i.e. glycine not part of th

16 lase, catalyzes an essential sequence of the photorespiratory C2 cycle, namely, the conversion of two

17 torespiratory metabolites, of enzymes of the photorespiratory carbon cycle, and of corresponding tran

18 e-assimilation of ammonia resulting from the photorespiratory carbon cycle.

19 Photorespiratory carbon flux reaches up to a third of ph

20 duced 66% by MPA, while intermediates of the photorespiratory carbon oxidation cycle showed a 3-fold

21 odeling indicate that the establishment of a photorespiratory carbon pump (termed C2 photosynthesis)

22 as identified a number of mutants exhibiting photorespiratory chlorosis at ambient CO(2), including s

23 olution of C(4) photosynthesis, leading to a photorespiratory CO(2) concentrating mechanism.

24 ermediate Flaveria species revealed that the photorespiratory CO(2) pump was not established in one s

25 decarboxylase (GDC) is the key component of photorespiratory CO(2) release in plants and is active i

26 the wild type, suggesting that the ratio of photorespiratory CO(2) release to Rubisco oxygenation wa

27 ted 2% of gross CO(2) uptake (v(c)), whereas photorespiratory CO(2) release was approximately 20% of

28 ase (GDC)-dependent) manner, and recuperates photorespiratory CO2 as oxaloacetate (OAA).

29 rees C, indicating that the stoichiometry of photorespiratory CO2 formation per glycolate oxidized no

30 a involves the establishment of a two-celled photorespiratory CO2 pump, termed C2 photosynthesis.

31 eversed when these plants are grown in a non-photorespiratory condition (i.e. 1% CO2 atmosphere), dem

32 ed when the aae13-1 mutant is grown in a non-photorespiratory condition (i.e. a 1% CO2 atmosphere), d

33 Under high light, CEF increased under photorespiratory conditions (high oxygen and low CO2), c

34 demonstrated that mutant plants under active photorespiratory conditions accumulated high levels of s

35 Maltose was increased under photorespiratory conditions in both wild type and plants

36 tarch phosphorylase enzyme were placed under photorespiratory conditions, G6P levels remained constan

37 In photorespiratory conditions, leaf glycine levels were up

38 HO-THF level under all conditions and, under photorespiratory conditions, quadrupled the pool of 10-f

39 Under photorespiratory conditions, transitory starch breakdown

40 carbon sources increased was observed under photorespiratory conditions, while photosynthetic condit

41 transferred for different lengths of time to photorespiratory conditions.

42 This enzyme complex is involved in the photorespiratory cycle and is inhibited by victorin, wit

43 The photorespiratory cycle begins with ribulose-1,5-bisphosp

44 ytosol, no transporter required for the core photorespiratory cycle has been identified at the molecu

45 The photorespiratory cycle is complex and occurs in three or

46 plants, glycolate oxidase is involved in the photorespiratory cycle, one of the major fluxes at the g

47 r, which is required for the function of the photorespiratory cycle.

48 ism, changes in cell organization, increased photorespiratory enzyme activity, induction of periplasm

49 depleted lipoylation of the H subunit of the photorespiratory enzyme glycine decarboxylase, increased

50 clude that Arabidopsis AGT1 is a peroxisomal photorespiratory enzyme that catalyzes transamination re

51 both the amounts of messenger RNAs encoding photorespiratory enzymes and the respective protein cont

52 Photorespiratory enzymes are encoded by nuclear genes, t

53 egulate the expression of the genes encoding photorespiratory enzymes is coordinated temporal control

54 is is consistent with its involvement in the photorespiratory export of glycolate from Arabidopsis ch

55 opsis thaliana) and in a mutant with altered photorespiratory flux due to the absence of the peroxiso

56 te a doubling in the carboxylation rate, the photorespiratory flux increased from 17 to 28% of net CO

57 these family members, including one probable photorespiratory gene (SHM1) and a second gene expressed

58 ntal evidence for a coordinate regulation of photorespiratory genes over time.

59 A coordinate repression of the photorespiratory genes was observed in the mutant backgr

60 are in phase with those described for other photorespiratory genes.

61 In higher plants, photorespiratory Gly oxidation in leaf mitochondria yiel

62 ration due to the reduced lipoylation of the photorespiratory glycine decarboxylase.

63 with a decrease in the rate of oxidation of photorespiratory glycine in the mitochondrion.

64 rboxylase (GDC), necessary for the high-flux photorespiratory glycine-into-serine conversion.

65 point toward divergent functions of the two photorespiratory GOX isoforms in Arabidopsis and contrib

66 Our findings reveal a link between SHR and photorespiratory H2O2 production that has implications f

67 Feeding [2-(13)C]glycine (a photorespiratory intermediate) stimulated emissions of [

68 lso caused the cells to excrete glycolate, a photorespiratory intermediate, but did not change the ap

69 However, levels of the photorespiratory intermediates 2-phosphoglycolate and gl

70 eased steady state contents of TCA cycle and photorespiratory intermediates as well as elevated NAD(P

71 drial proteins, and the hyperaccumulation of photorespiratory intermediates, glycine and glycolate.

72 spiratory burst and an increase in levels of photorespiratory intermediates, suggesting changes in ph

73 ar efficiency to glycolate; in contrast, the photorespiratory isoforms GOX1 and GOX2, which share sim

74 Thus, photorespiratory losses of CO2 were significantly reduce

75 Photorespiratory losses were similar to other C3 species

76 l isoform of aspartate aminotransferase, and photorespiratory markers, while the C-CP and P-CP have h

77 ut little is known about the contribution of photorespiratory metabolites to the regulation of gene e

78 we examined diurnal changes in the levels of photorespiratory metabolites, of enzymes of the photores

79 e and irradiance on leaf respiration (R, non-photorespiratory mitochondrial CO(2) release) of snow gu

80 Analysis of photorespiratory mutants indicates that photorespiratory

81 This is in contrast to other photorespiratory mutants, which have severely reduced ra

82 m, revealing onward metabolism of Asn by the photorespiratory nitrogen cycle and accumulation of arom

83 at chloroplast linear electron transport and photorespiratory O(2) uptake were similar between genoty

84 stomatal conductance, photosynthetic CO2 and photorespiratory O2 fixation, and starch synthesis in re

85 This study determines photosynthetic and photorespiratory parameters for leaves in a natural stan

86 dels of C(3) photosynthesis by including the photorespiratory pathway (PCOP) and metabolism to starch

87 an up-regulation of the Calvin cycle and the photorespiratory pathway in peroxisomes and mitochondria

88 cally the lack of transient increases in the photorespiratory pathway intermediates 2-phosphoglycolat

89 The photorespiratory pathway is comprised of enzymes localiz

90 The photorespiratory pathway is highly compartmentalized, in

91 nd 14CO2 in a 1:1 ratio, suggesting that the photorespiratory pathway is otherwise normal in the muta

92 h CO(2) conditions; and all glycine from the photorespiratory pathway is routed to proteins within ph

93 Although the photorespiratory pathway is well characterized, little i

94 serine catabolism of vertebrates, and in the photorespiratory pathway of oxygenic phototrophs.

95 ypothesis that facilitating flux through the photorespiratory pathway stimulates photosynthetic CO2 a

96 coding for the core metabolic enzymes of the photorespiratory pathway that allows plants with C3-type

97 lase complex (GDC) is a key component of the photorespiratory pathway that occurs in all photosynthet

98 nes encoding mitochondrial components of the photorespiratory pathway, we characterized a family of A

99 that increase the metabolic flux through the photorespiratory pathway.

100 and peroxisomal (catalase) components of the photorespiratory pathway.

101 contribute to a better understanding of the photorespiratory pathway.

102 notransferases play central roles within the photorespiratory pathway.

103 tion, glycolate oxidase (GOX) mutants with a photorespiratory phenotype have not been described yet i

104 one of the two genes for Fd-GOGAT leads to a photorespiratory phenotype in the gls1 mutants.

105 LYCOLATE OXIDASE1 (GOX1) that attenuated the photorespiratory phenotype of cat2-2 Interestingly, knoc

106 The photorespiratory phenotype of cat2-2 mutants did not dep

107 or the SHM1 promoter in shm1-1 abrogated the photorespiratory phenotype of the shm mutant, whereas ov

108 hondrial SHMT activity and displays a lethal photorespiratory phenotype when grown at ambient CO2, bu

109 in the cat2-2 background did not affect the photorespiratory phenotype, indicating that GOX1 and GOX

110 lic GS1 in leaves may act via photosynthetic/photorespiratory process.

111 leaves with closed stomata, indicating that photorespiratory recycling of CO(2) provided little phot

112 The Calvin-Benson cycle and its photorespiratory repair shunt are in charge of nearly al

113 Sequence analysis of the photorespiratory sat mutants revealed a single nucleotid

114 otein interactions and complex formation for photorespiratory SHMT activity demonstrates more complic

115 SHMT1, and this interaction is necessary for photorespiratory SHMT activity.

116 across gradients of drought (r(2) > 0.8) and photorespiratory stress (r(2) > 0.9).

117 a cat2-2 genetic background upon exposure to photorespiratory stress.

118 imit emission rates under severe drought and photorespiratory stresses.

119 of the control loops that sense the ratio of photorespiratory to photosynthetic carbon flux and in tu

120 e translocator 1 (PLGG1) as a candidate core photorespiratory transporter.