Abstract：
:Needle differentiation is a very complex process associated with the formation of a mature photosynthetic organ. From meristem differentiation to leaf maturation, gene control must play an important role switching required genes on and off to define tissue functions, with the epigenetic code being one of the main regulation mechanisms. In this work, we examined the connections between the variation in the levels of some epigenetic players (DNA methylation, acetylated histone H4 and histone H3 methylation at Lys 4 and Lys 9) at work during needle maturation. Our results indicate that needle maturation, which is associated with a decrease in organogenic capability, is related to an increase in heterochromatin-related epigenetic markers (high DNA methylation and low acetylated histone H4 levels, and the presence of histone H3 methylated at lys 9). Immunohistochemical analyses also showed that the DNA methylation of palisade parenchyma cell layers during the transition from immature to mature scions is associated with the loss of the capacity to induce adventitious organs.
journal_name
J Plant Physioljournal_title
Journal of plant physiologyauthors
Valledor L,Meijón M,Hasbún R,Jesús Cañal M,Rodríguez Rdoi
10.1016/j.jplph.2009.09.018subject
Has Abstractpub_date
2010-03-15 00:00:00pages
351-7issue
5eissn
0176-1617issn
1618-1328pii
S0176-1617(09)00432-5journal_volume
167pub_type
杂志文章abstract：:Researchers have proven that nanomaterials have a significant effect on plant growth and development. To better understand the effects of nanomaterials on plants, Zhongshuang 11 was treated with different concentrations of graphene oxide. The results indicated that 25-100mg/l graphene oxide treatment resulted in short...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2016.02.011
更新日期：2016-04-01 00:00:00
abstract：:Four-day-old etiolated cucumber seedlings (Cucumis sativus L.) were transferred to cool-white-fluorescent light (15 mumol m-2 s-1) for 1 h and 24 hours and etiochloroplasts and chloroplasts were isolated from developing cotyledons. Plastids were fractionated to stroma, envelope and thylakoid or inner membranes and the...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1078/0176-1617-00848
更新日期：2003-01-01 00:00:00
abstract：:Cryptochromes are blue-light photoreceptors that control many aspects of plant development. In this study, cryptochrome mutants of Arabidopsis were examined to assess the role of cryptchrome-1 (CRY1) in lateral roots growth. When grown in blue light for 12d, mutant seedlings (cry1) showed increased growth of lateral r...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2009.12.003
更新日期：2010-05-15 00:00:00
abstract：:Previous results have shown that hydrogen sulfide (H2S), mainly catalyzed by l-cysteine desulfhydrase (DES) in plants, triggers adventitious rooting. The objective of this study was to test whether H2S is involved in methane (CH4)-induced adventitious root development in cucumber explants. First, we observed that the ...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2018.05.010
更新日期：2018-09-01 00:00:00
abstract：:We isolated a homolog of the potential anti-apoptotic gene, defender against apoptotic death (DAD1) from gladiolus petals as full-length cDNA (GlDAD1), and investigated the relationship between its expression and the execution processes of programmed cell death (PCD) in senescing petals. RNA gel blotting showed that G...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2004.06.005
更新日期：2004-11-01 00:00:00
abstract：:In the highly vacuolated epidermis cells of leaf explants of Nautilocalyx we investigated whether inhibition of cytokinesis by 2,6-dichlorobenzonitrile (DCB) could be caused by a suppression of the formation of phragmosome and band of microtubules (BMT), two structures which are probably involved in cytokinesis and in...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/S0176-1617(84)80092-9
更新日期：1984-09-01 00:00:00
abstract：:This report demonstrates that mitochondria isolated from thermogenic Arum spadices possess an ATP-sensitive potassium channel--responsible for electrical potential (DeltaPsi) collapse and mitochondrial swelling--whose characteristics are similar to those previously described in pea and wheat mitochondria. In order to ...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2007.10.012
更新日期：2008-09-08 00:00:00
abstract：:Leaf growth is one of the first physiological processes affected by changes in plant water status under drought. A decrease in leaf expansion rate usually precedes any reduction in stomatal conductance or photosynthesis. Changes in leaf size and stomatal opening are potential adaptive mechanisms, which may help avoid ...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2010.03.003
更新日期：2010-09-01 00:00:00
abstract：:Raffinose synthase (RS, EC2.4.1.82) is one of the key enzymes that channels sucrose into the raffinose family oligosaccharides (RFOs) biosynthetic pathway. However, the gene encoding RS is poorly characterized in cucumber (Cucumis sativus L.), which is a typical RFOs-translocating plant species. Here we isolated the g...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2012.07.019
更新日期：2012-12-15 00:00:00
abstract：:Acute ozone is a model abiotic elicitor of oxidative stress in plants. In order to identify genes that are important for conferring ozone resistance or sensitivity we used two accessions of Medicago truncatula with contrasting responses to this oxidant. We used suppression subtraction hybridization (SSH) to identify g...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2009.01.009
更新日期：2009-08-15 00:00:00
abstract：:In sterile cultivated protonema of the moss Funaria hygrometrica we found a promotion of ethylene formation by ACC but not by other possible precursors such as 2-ketoglutarate or glutamate. The ACC contents and ethylene formation during development of protonema were correlated. Both ACC contents and ethylene formation...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/S0176-1617(85)80069-9
更新日期：1985-01-01 00:00:00
abstract：:We have proposed that the polyamine spermine (Spm) functions as a signaling molecule to evoke defense reactions/cell death in avirulent pathogen-attacked tobacco plants. To understand its molecular basis in depth, Spm-responsive genes in Arabidopsis thaliana were identified by SuperSAGE analysis. Close to 90% of the S...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2008.08.006
更新日期：2009-04-01 00:00:00
abstract：:Flowering time control is important for fruit production in Fragaria × ananassa. The flowering inhibition pathway has been extensively elucidated in the woodland strawberry, Fragaria vesca, whereas the factors involved in its promotion remain unclear. In this study, we investigated the environmental responses of F. × ...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2015.01.007
更新日期：2015-04-01 00:00:00
abstract：:The distribution of the endogenous PA fractions throughout the entire perennial woody grapevine (Vitis vinifera L.) plant was studied, along with the expression profiles of the PA anabolic and catabolic genes and their substrates and secondary metabolites. Putrescine fractions increased with increasing leaf age, altho...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2009.03.013
更新日期：2009-09-15 00:00:00
abstract：:Euglena gracilis, a unicellular photosynthetic flagellate, uses light and gravity as environmental hints to reach and stay in regions optimal for growth and reproduction. The current model of gravitaxis (the orientation with respect to the earth's gravitational field) is based on the specific density difference betwee...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1078/0176-1617-00194
更新日期：2001-01-01 00:00:00
abstract：:Both H(2)O(2) and NO are involved in multiple physiological responses in plants. Metallothionein (MT) can bind heavy metal ions and reduce metal toxicity. Copper toxicity has become a major problem with increasing agricultural and environmental pollution. Here, we investigated the possible roles of ROS, NO and metallo...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2010.04.007
更新日期：2010-10-15 00:00:00
abstract：:A fragment encoding a partial sequence of a prohibitin (Phb) gene was isolated. The expression of Phb mRNA and protein in seeds of wild type and mutant Arabidopsis thaliana is presented. Phb mRNA is abundant in wild-type seeds; thus, it may have sequence or structural characteristics responsible for this stability. Th...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2006.05.002
更新日期：2007-03-01 00:00:00
abstract：:In our previous study we showed that volatile organic compounds (VOCs) from Alcaligenes faecalis JBCS1294 (JBCS1294) induced tolerance to salt stress in Arabidopsis thaliana by influencing the auxin and gibberellin pathways and upregulating the expression of key ion transporters. The aim of this study was to evaluate ...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2017.04.002
更新日期：2017-07-01 00:00:00
abstract：:A study of the effects of elevated levels of Cu2+ and Zn2+ on NO3- uptake and nitrate reductase (NR) activity in Scenedesmus sp. was carried out. The two metals inhibited NR and NO3- uptake in a concentration-dependent manner, with the latter process being inhibited more strongly than the former. After withdrawal of m...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1078/0176-1617-01238
更新日期：2004-05-01 00:00:00
abstract：:To elucidate influences on the tocopherol biosynthesis in cyanobacteria, wild type and mutant cells of a putative methyltransferase in tocopherol and plastoquinone biosynthesis of Synechocystis sp. PCC 6803 were grown under different conditions. The vitamin E content of cells grown under different light regimes, photo...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2005.04.006
更新日期：2005-07-01 00:00:00
abstract：:The endophytic Bacillus amyloliquefaciens YTB1407 was previously reported to promote the growth of sweet potato (Ipomoea batatas cv. Yanshu 25). Here, we demonstrate in both in vitro and pot trial assays that pre-treatment with YTB1407 suspension could enhance resistance against root rot disease and black rot disease,...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2020.153260
更新日期：2020-10-01 00:00:00
abstract：:Triacylglycerols (TAGs) are the most important energy storage form in oilseed crops. Diacylglycerol acyltransferase (DGAT) catalyzes the rate-limiting step of the Kennedy pathway of TAG biosynthesis. To date, little is known about the regulation of DGAT activity in peanut (Arachis hypogaea), an agronomically important...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2017.09.009
更新日期：2017-12-01 00:00:00
abstract：:1-Deoxy-d-xylulose 5-phosphate reductoisomerase (DXR, EC: 1.1.1.267) is the second enzyme in the 2C-methyl-d-erythritol 4-phosphate (MEP) pathway, one of the two pathways in plants that can produce isoprenoids. The MEP pathway is the source of isoprene emitted from leaves, but rubber production is believed to result p...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2007.06.014
更新日期：2008-06-16 00:00:00
abstract：:The functional activities of the photosynthetic apparatus of two tomato cultivars of different thermotolerance were investigated after a short period of high temperature treatment. Seedlings of two tomato genotypes, Lycopersicon esculentum var. Campbell-28 and the wild thermotolerant Nagcarlang, were grown under a pho...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2004.07.014
更新日期：2005-03-01 00:00:00
abstract：:Mesophyll mitochondria from green leaves of the C(4) plants Zea mays (NADP-ME-type), Panicum miliaceum (NAD-ME-type) and Panicum maximum (PEP-CK-type) oxidized NADH, malate and succinate at relatively high rates with respiratory control, but glycine was not oxidized. Among the mitochondrial proteins involved in glycin...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2007.07.015
更新日期：2008-07-07 00:00:00
abstract：:Productivity of cereal crops is restricted in saline soils but may be improved by nitrogen nutrition. In this study, the effect of ionic nitrogen form on growth, mineral content, protein content and ammonium assimilation enzyme activities of barley (Hordeum vulgare cv. Alexis L.) irrigated with saline water, was deter...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2005.12.011
更新日期：2007-03-01 00:00:00
abstract：:Since gravistimulation is followed by alterations in the external current symmetry (Behrens et al., 1982), the effect of gravistimulation on cellular membrane potential was investigated using conventional glass microelectrode techniques. The resting potential of statocytes in a vertically oriented root is approx. -118...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/s0044-328x(84)80010-0
更新日期：1984-04-01 00:00:00
abstract：:In prior studies we learned that colonization of soil can be as important as colonization of roots in determining mycorrhizal influence on the water relations of host plants. Here we use a path analysis modeling approach to test (a) whether quantity of hyphae in soil contributes to variations in stomatal behavior and ...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2006.08.005
更新日期：2007-10-01 00:00:00
abstract：:A sand culture experiment was conducted to answer the question whether or not exogenous KNO(3) can alleviate adverse effects of salt stress in winter wheat by monitoring plant growth, K(+)/Na(+) accumulation and the activity of some antioxidant enzymes. Seeds of two wheat cultivars (CVs), DK961 (salt-tolerant) and JN1...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2008.01.001
更新日期：2008-09-29 00:00:00
abstract：:Agrobacterium has the ability to transfer its genetic material, T-DNA, into the plant genome. The unique interaction between the bacterium and its host plant has been well studied at the transcriptome, but not at the metabolic level. For a better understanding of this interaction it is necessary to investigate the met...
journal_title：Journal of plant physiology
pub_type： 杂志文章
doi：10.1016/j.jplph.2008.11.015
更新日期：2009-07-01 00:00:00
