Abstract:
:Mitochondria were isolated from tomato (Lycopersicon esculentum L.) fruit at the mature green, orange-green and red stages and from fruit artificially suspended in their ripening stage. The specific activities of citrate synthase (EC 4.1.3.7), malate dehydrogenase (EC 1.1.1.37), NAD-linked isocitrate dehydrogenase (EC 1.1.1.41) and NAD-linked malic enzyme (EC 1.1.1.38) were determined. The specific activities of all these enzymes fell during ipening, although the mitochondria were fully functional as demonstrated by the uptake of oxygen. The fall in activity of mitochondrial malate dehydrogenase was accompanied by a similar fall in the activity of the cytosolic isoenzyme. Percoll-purified mitochondria isolated from mature green fruit remained intact for more than one week and at least one enzyme, citrate synthase, did not exhibit the fall in specific activity found in normal ripening fruit.
journal_name
Plantajournal_title
Plantaauthors
Jeffery D,Goodenough PW,Weitzman PDdoi
10.1007/BF00392366subject
Has Abstractpub_date
1986-09-01 00:00:00pages
390-4issue
3eissn
0032-0935issn
1432-2048journal_volume
168pub_type
杂志文章相关文献
PLANTA文献大全abstract::Isoelectric focusing of the membrane polypeptides derived from castor bean (Ricinus communis L.) endosperm glyoxysomes and endoplasmic reticulum reveals a close similarity in the composition of these membranes, consistent with a developmental relationship between the organelles. ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00390852
更新日期:1976-01-01 00:00:00
abstract::In order to analyze the genetic programme expressed during the early stages of embryogenesis a cDNA clone bank was constructed from desiccation-tolerant excised barley embryos 18 d after pollination (D. Bartels et al., 1988, Planta 175, 485-492). One of the selected cDNA clones pG31 encodes a transcript of 1300 nucleo...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00203590
更新日期:1994-01-01 00:00:00
abstract::The use of complementary and alternative medicines for breast cancer patients has been increasing every year. Traditional Indian systems of medicine, such as Siddha, have been reported to benefit patients in India through herbal interventions for cancer. One such herbal medicine is Semecarpus Lehyam (SL), and this stu...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-004-1405-4
更新日期:2005-04-01 00:00:00
abstract::Atomic force microscopy (AFM) was used to image celery (Apium graveolens L.) parenchyma cell walls in situ. Cellulose microfibrils could clearly be distinguished in topographic images of the cell wall. The microfibrils of the hydrated walls appeared smaller, more uniformly distributed, and less enmeshed than those of ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s004250000359
更新日期:2000-12-01 00:00:00
abstract::The studies described in the paper were conducted with tissue slices of Crassulacean acid metabolism (CAM) plants floating in isotonic buffer. In a first series of experiments, temperature effects on the efflux of [(14)C]malate and(14)CO2 were studied. An increase of temperature increased the efflux from the tissue in...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00634473
更新日期:1988-12-01 00:00:00
abstract:MAIN CONCLUSION:Phytosterol homeostasis may be maintained in leaves through diversion of intermediates into glycoalkaloid biosynthesis, whereas in tuber flesh, excess intermediates are catalyzed by tuber-specific StLAS - like , resulting in low tuber glycoalkaloids. Lanosterol synthase (LAS) and cycloartenol synthase (...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-017-2763-z
更新日期:2017-12-01 00:00:00
abstract::The effect of varying calcium concentration in the medium on the potassium flux into the exudate has been studied. In media of low ionic strength (o.1 mM KCl) the potassium flux, J K, was significantly increased by increasing the calcium concentration of the medium. But in higher ionic strength media (10 mM) KCl) ther...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00396427
更新日期:1969-12-01 00:00:00
abstract:MAIN CONCLUSION:Rare red currants colors caused by low anthocyanin content in the pink and a lack of anthocyanins in the white cultivar correlated with low ANS gene expression, enzyme activity, and increased sugar/acid ratios. Changes in the contents of polyphenols, sugars, and organic acids in berries of the three dif...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-017-2670-3
更新日期:2017-08-01 00:00:00
abstract::Sphagnum magellanicum shows a remarkable variation in colour after the repeated application of cold shocks; mainly red wall pigments are synthesized. An attempt was made to find out in which way the gas exchange of Sphagnum magellanicum under defined conditions is altered after the application of cold shocks.The light...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00388819
更新日期:1968-03-01 00:00:00
abstract::Freezing and thawing lead to xylem embolism when gas bubbles caused by ice formation expand during the thaw process. However, previous experimental studies indicated that conifers are resistant to freezing-induced embolism, unless xylem pressure becomes very negative during the freezing. In this study, we show that co...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-003-0997-4
更新日期:2003-07-01 00:00:00
abstract::Sporangiophores of Phycomyces blakesleeanus that are gravitropically stimulated by inclining them relative to the earth's gravitational vector obey the sine law for inclination angles between 0 degrees and 150 degrees. The quantitative relation between gravitropism and phototropism was analyzed for sporangiophores tha...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-001-0705-1
更新日期:2002-04-01 00:00:00
abstract::Addition of an osmoticum (-12 bars) to the rooting medium of sunflowers (Helianthus annuus L.) caused an increase in the level of abscisic acid (ABA) present in xylem exudate subsequently collected from cut shoots. Using tall and dwarf plants it was shown that there was a time lag in the appearance of increased levels...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00390064
更新日期:1975-01-01 00:00:00
abstract::Galls induced on Gypsophila paniculata by Pantoea agglomerans pv. gypsophilae (Pag) and Agrobacterium tumefaciens (At), bacteria with different mechanisms of pathogenicity, were compared morphologically and anatomically. The pathogenicity of Pag is dependent on the presence of an indigenous plasmid that harbors hrp ge...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-006-0229-9
更新日期:2006-07-01 00:00:00
abstract::Apical cells on the verge of dividing, or having recently formed a new segment, or actually dividing, are not uncommonly encountered in bryophytes and pteridophytes. This is interpreted as evidence for the "classical" concept of active apical segmentation in these plants (versus the concept of a quiescent apical cell)...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00392913
更新日期:1978-01-01 00:00:00
abstract:MAIN CONCLUSION:Exogenously applied 2% fructose is the most appropriate carbon source that enhances photosynthesis and growth of grape plantlets compared with the same concentrations of sucrose and glucose. The role of the sugars was regulated by the expression of key candidate genes related to hormones, key metabolic ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-017-2712-x
更新日期:2017-09-01 00:00:00
abstract::While uniparental transmission of mtDNA is widespread and dominating in eukaryotes leaving mutation as the major source of genotypic diversity, recently, biparental inheritance of mitochondrial genes has been demonstrated in reciprocal crosses of Pelargonium zonale and P. inquinans. The thereby arising heteroplasmy ca...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-012-1768-x
更新日期:2013-02-01 00:00:00
abstract::Putative potassium-transport-deficient mutant strains of Chlamydomonas reinhardtii Dang. were induced by ultra-violet mutagenesis and were identified by their dependence on abnormally high concentrations of potassium for growth. Potassium transport studies employing (86)Rb as a tracer were carried out with wild-type c...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00393508
更新日期:1985-02-01 00:00:00
abstract::The scanning electron-microscope was used to obtain a more adequate view of the separation surfaces exposed when the stem was pulled from the fruit of Valencia orange. Separations were made at 0, 24 and 48 h after ethylene treatment of the fruit. The most noticeable differences are the lessened amount of tearing in pr...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00390215
更新日期:1971-12-01 00:00:00
abstract::Phaseolus coccineus embryos at the heartshaped and the middle cotyledonary stages were cultured in vitro on media added with different concentrations of zeatin (Z) or zeatin riboside (Zr). Growth of early embryos was clearly favored by concentrations of Z from 10(-8) M to 10(-5) M, lower concentrations having no effec...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00384586
更新日期:1979-10-01 00:00:00
abstract::Chlorophyll fluorescence emission at 680 nm (F680) and the rate of CO2 fixation were measured simultaneously in sections along the length of wheat and maize leaves. These leaves possess a basal meristem and show a gradation in development towards the leaf tip. The redox state of the primary electron acceptor, Q, of ph...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00398092
更新日期:1985-09-01 00:00:00
abstract:MAIN CONCLUSION:Expression of bHLH104 - GFP driven by the MYB72 promoter improves plants' tolerance to Fe deficiency and increases seed Fe concentrations. Iron (Fe) deficiency causes reduced crop yield and quality. In humans, Fe deficiency is directly associated with Fe-deficiency anemia. Therefore, breeding Fe-deficie...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-017-2703-y
更新日期:2017-09-01 00:00:00
abstract::Plastids of Cuscuta reflexa Roxb., C. subinclusa D. et H., C. gronovii Willd. and C. campestris Yunck. possess thylakoids and contain both chlorophyll a and b in a ratio similar to that of stem tissue of the systematically closely related but 'normal' green Ipomoea tricolor. In contrast, plastids of C. odorata R. et P...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s004250050670
更新日期:2000-04-01 00:00:00
abstract::A comparison was made of the activity of carboxydismutase (ribulose-1,5-diphosphate carboxylase) between higher plant species which possess the β-carboxylation (C4-dicarboxylic acid) pathway for photosynthesis and species which lack this pathway. Contrary to earlier findings no marked difference in the level of this e...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00385062
更新日期:1969-09-01 00:00:00
abstract::Shampoo ginger (Zingiber zerumbet Smith) has a high content and large variety of terpenoids in the essential oil of its rhizome. Here, we report on the isolation of a cDNA clone (ZSS1) encoding alpha-humulene synthase, a possible key enzyme of zerumbone biosynthesis. This clone contains an open reading frame of 1,644 ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-008-0700-x
更新日期:2008-05-01 00:00:00
abstract::The mechanism for cadmium (Cd2+) uptake into the cytosol of protoplasts from 5- to 7-day-old wheat seedlings (Triticum aestivum L. cv. Kadett) was investigated by a new method, using fluorescence microscopy and the heavy metal-specific fluorescent dye, 5-nitrobenzothiazole coumarin, BTC-5N. Cadmium fluorescence gradua...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-004-1256-z
更新日期:2004-07-01 00:00:00
abstract::The pistil of tobacco (Nicotiana tabacum L. cv. Wisconsin 38) is comprised of two fused carpels. The stigma is bilobed, papillose, and at maturity is covered with a sticky exudate. The style is solid. Both stigma and style are made up of four tissue elements-epidermis, cortex, vascular, and transmitting tissue. Transm...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00389993
更新日期:1976-01-01 00:00:00
abstract::The role of microtubules and ions in cell shaping was investigated in differentiating guard cells of Allium using light and electron microscopy and cytochemistry. Microtubules appear soon after cytokinesis in a discrete zone close to the plasmalemma adjacent to the common wall between guard cells. The microtubules fan...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00390333
更新日期:1976-01-01 00:00:00
abstract::Previous studies have led to the identification and characterization of specific, high-affinity binding sites for a hepta-beta-glucoside elicitor in soybean. A survey of plant species for elicitor-binding activity reveals that among the plants tested, the hepta-beta-glucoside elicitor is only recognized by plants belo...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s004250000325
更新日期:2000-09-01 00:00:00
abstract::1-Sinapoylglucose was isolated in cristalline form from mutants of Matthiola incana. In addition, 1-feruloyl-glucose and 1-p-cumaroyl-glucose were isolated and identified by paper chromatography. The molecular weights of penta-(trimethylsilyl)-1-sinapoyl-glucose and penta-(trimethylsilyl)-1-feruloyl-glucose have been ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00389041
更新日期:1973-09-01 00:00:00
abstract::The typical wound respiration drift (O2 und CO2) of 1 mm disks, which amounts to 6 times the values measured immediately after derepression, develops only if cicatrization takes place, but never in proliferating or non-proliferating tissues without suberin biosynthesis. The respiration rate of the latter is merely app...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00388040
更新日期:1970-06-01 00:00:00