ترجمه Feeding hungry plants: The role of purple acid phosphatases in phosphate nutrition - دانلود رایگان
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دانلود رایگان ترجمه Feeding hungry plants: The role of purple acid phosphatases in phosphate nutritionphosphate nutrition
Phosphate (Pi) is an essential, but limiting macronutrient that plays critical roles in plant metabolism
and development. Plants have evolved an intricate array of adaptations to enhance Pi acquisition and
utilization from their environment. The availability of the complete genome sequence of the model plant
Arabidopsis thaliana, together with a wide assortment of related genomic resources, has significantly
advanced our understanding of the adaptations of Pi-starved plants. Information on the genetic identity,
subcellular location, biochemical properties, and probable functions of acid phosphatases involved
in the Pi metabolism of Pi-starved Arabidopsis is beginning to emerge. Acid phosphatases catalyze the
hydrolysis of Pi from a broad range of phosphomonoesters with an acidic pH optimum. The Arabidopsis
genome encodes 29 different purple acid phosphatases whose expression is influenced by various
developmental and environmental factors. Pi starvation induces de novo synthesis of several extraand
intracellular Arabidopsis purple acid phosphatase isozymes; AtPAP12 and AtPAP26 appear to be
the principal root-secreted acid phosphatases that scavenge Pi from extracellular Pi-esters, whereas the
dual-targeted AtPAP26 is the predominant intracellular acid phosphatase that functions in vacuolar Pi
recycling by Pi-starved Arabidopsis. The identification and functional characterization of intracellular
and secreted purple acid phosphatase isozymes upregulated by Pi-deprived plants may help develop
strategies for engineering Pi-efficient crops, thereby minimizing the use of unsustainable Pi fertilizers in
agriculture.
تغذیه گیاهان
فاقد مواد غذایی: نقش فسفاتازهای اسید ارغوانی در تغذیه فسفات چکیده: فسفات(pi) ضروری است،اما
عنصر غذایی پرمصرف را که در متابولیسم و رشد و نمو گیاه نقش مهمی دارد، محدود می
کند. گیاهان در یک روش پیچیده برای افزایش بدست آوردن pi و مورد استفاده
قرار دادن محیط خود تکامل می یابند. قابلیت در درسترس قرارگیری توالی ژنوم کامل
گیاه Arabidopsis thaliana همراه با طبقه بندی گسترده منابع ژنوم مرتبط در درک ما درباره
سازگاری گیاهان نیازمند به pi پیشرفت قابل توجهی دارد. اطلاعات درباره یکسانی ژنتیکی،محل
زیرمولکولی،ویژگی های بیوشیمیایی و نقش های احتمالی فسفاتازهای اسید شرکت کننده در
متابولیسم pi گیاه Arabidopsis نیازمند به pi در ابتدا نمود پیدا می کنند. فسفاتازهای اسید،هیدرولیز pi را از محدود
گسترده فسفومنواسترهای دارای PH اسیدی بهینه کاتالیز می کند. ژنوم Arabidopsis حدود 29
فسفاتار اسید ارغوانی را رمزگذاری می کند که این بیان بوسیله فاکتورهای رشد و نموی
و محیطی تحت تاثیر قرار می گیرد. فرایند گرسنگی یا نیاز به pi باعث تحریک
مجدد سنتز چندین آنزیم فسفاتاز اسید ارغوانی درون سلولی و بیرون سلولی Arabidopsis می شود. به نظر
می رسد AtPAP12 و AtPAP26 فسفاتازهای اصلی اسید ترشح شده از ریشه می باشند که pi را از استرهای pi بیرون سلولی
تمیز نگه می دارند، درحالی که AtPAP26 فسفاتاز اسید درون سلولی مهم می باشد که در بازاریابی pi واکوولار
بوسیله Arabidopsis نیازمند به pi نقش دارد. مشخصه شناسایی و عملکردی آنزیم های فسفاتاز اسید
ارغوانی ترشح شده از ریشه می باشند که pi را از استرهای pi بیرون سلولی
تمیز نگه می دارند، در حالی که AtPAP26 فسفاتاز اسید درون سلولی مهم می باشد که در بازیابی pi واکوولاز
بوسیله Arabidopsis نیازمند به pi نقش دارد. مشخصه شناسایی و عملکردی آنزیم های فسفاتاز اسید
ارغوانی ترشح شده و درون سلولی بوسیله گیاهان محروم از pi تنظیم می شود
که ممکن است به توسعه راهبردهایی برای مهندسی شدن محصولات کارآمد pi کمک کند و به
موجب آن استفاده از کودهای شیمیایی pi ناپایدار در کشاورزی به حداقل برسد. 1 – مقدمه
ارتوفسفات(pi) در فرایندهای متابولیکی گیاهان
از جمله فتوسنتز و تنفس نقش مهمی ایفاء می کند. همچنین یک ترکیب ساختاری مهم
درباره مولکولهای زیستی مانند ATP،NADPH،اسیدهای نوکلئیک،فسفولیپیدها و
فسفاتازهای قند می باشد. با این حال،غلظت pi محلول بسیاری از خاک ها در گستره
هایی از حدود 1 تا 10µm از غلظت های pi درون
سلولی بسیار پایین تر و برای رشد بهینه گیاه مورد نیاز است. به حداکثر رساندن
عملکرد جدیدترین گونه های محصولات به استفاده گسترده از کودهای pi متکی
است.تخمین زده شده است 40 میلیون تن کود pi سالیانه در سراسر جهان مورد
استفاده قرار می گیرد، که کمتر
لینک دانلود رایگان مقاله انگلیسی
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ترجمه
Feeding
hungry
plants:
The
role
of
purple
acid
phosphatases
in
phosphate
nutrition
مقاله
پاورپوینت
فایل فلش
کارآموزی
گزارش تخصصی
اقدام پژوهی
درس پژوهی
جزوه
خلاصه
Feeding hungry plants: the role of purple acid ...
Phosphate (Pi) is an essential, but limiting macronutrient that plays critical roles in plant metabolism and development. Plants have evolved an intricate array of adaptations to enhance Pi acquisition and utilization from their environment. The availability of the complete genome sequence of the model plant Arabidopsis thaliana, together with a wide assortment of related genomic resources, has...
Structural relationship between the mammalian …
Structural relationship between the mammalian Fe(III)‐Fe(II) and the Fe(III)‐Zn(II) plant purple acid phosphatases Thomas Klabunde Institut für Anorganische Chemie, Westfälische Wilhelms-Universität, Wilhelm-Klemm Str. 8, D-48149 Münster, Germany
Metabolic Adaptations of Phosphate-Starved Plants …
01/07/2011 · feeding hungry plants: the role of purple acid phosphatases in phosphate nutrition Purple APases (PAPs) comprise the largest class of plant APases. They exhibit a distinctive purple or pink color in solution that results from a charge transfer transition at about 560 nm from the metal-coordinating Tyr to the metal ligand Fe(III) ( Tran et al., 2010a ).
Arabidopsis phosphatase under-producer pup1 and pup3 ...
Keywords: acid phosphatase, AtPAP10, AtPAP26, phosphatase under-producer mutant, Phosphate deficiency response, pup1, pup3 Production and secretion of acid phosphatases (APases) is a hallmark adaptive response of plants to phosphate (Pi) deprivation.
The Arabidopsis Purple Acid Phosphatase AtPAP10 …
Induction of secreted acid phosphatase (APase) is a universal response of higher plants to phosphate (Pi) limitation. These enzymes are thought to scavenge Pi from organophosphate compounds in the rhizosphere and thus to increase Pi availability to plants when Pi is deficient. The tight association of secreted APase with the root surface may make plants more efficient in the utilization of ...
The Burholderia pyrrocinia Purple Acid …
Increasing the expression level of purple acid phosphatases (PAPs), which hydrolyze organic phosphate to inorganic phosphate (Pi), is an important response to Pi starvation in plants. PAPs are widely distributed in eukaryotes like mammals and plants but distributed in limited microorganisms. A PAP-like protein named Pap9 from Burkholderia pyrrocinia CH-67 was isolated.
Metabolic Adaptations of Phosphate-Starved Plants …
01/07/2011 · feeding hungry plants: the role of purple acid phosphatases in phosphate nutrition Purple APases (PAPs) comprise the largest class of plant APases. They exhibit a distinctive purple or pink color in solution that results from a charge transfer transition at about 560 nm from the metal-coordinating Tyr to the metal ligand Fe(III) ( Tran et al., 2010a ).
The Arabidopsis Purple Acid Phosphatase AtPAP10 …
22/09/2011 · (2010a) Feeding hungry plants: the role of purple acid phosphatases in phosphate nutrition. Plant Sci 179: 14–27; Tran HT, Qian WQ, Hurley BA, She YM, Wang DW, Plaxton WC. (2010b) Biochemical and molecular characterization of AtPAP12 and AtPAP26: the predominant purple acid phosphatase isozymes secreted by phosphate-starved Arabidopsis thaliana.
Arabidopsis purple acid phosphatase 10 is a …
01/03/2012 · Arabidopsis has 29 purple acid phosphatase genes. 13 Among these, AtPAP10, AtPAP12 and AtPAP26 form a closely related subgroup and are all secreted enzymes. 11, 14 These three enzymes have both overlapping and distinct substrate spectra against different organophosphates. Thus, it will be interesting to use both their overexpressing and mutant lines to compare the roles of each …
Arabidopsis purple acid phosphatase 10 is a …
01/03/2012 · Arabidopsis has 29 purple acid phosphatase genes. 13 Among these, AtPAP10, AtPAP12 and AtPAP26 form a closely related subgroup and are all secreted enzymes. 11, 14 These three enzymes have both overlapping and distinct substrate spectra against different organophosphates. Thus, it will be interesting to use both their overexpressing and mutant lines to compare the roles of each …
The Burholderia pyrrocinia Purple Acid …
Increasing the expression level of purple acid phosphatases (PAPs), which hydrolyze organic phosphate to inorganic phosphate (Pi), is an important response to Pi starvation in plants. PAPs are widely distributed in eukaryotes like mammals and plants but distributed in limited microorganisms. A PAP-like protein named Pap9 from Burkholderia pyrrocinia CH-67 was isolated.
Feeding hungry plants: The role of purple acid ...
Feeding hungry plants: The role of purple acid phosphatases in phosphate nutrition (AGR:IND44380306) Abstract Citations ... Phosphate (Pi) is an essential ... The Arabidopsis genome encodes 29 different purple acid phosphatases whose expression is influenced by various developmental and environmental factors.
Differential Expression of Three Purple Acid …
Abstract: Three cDNAs encoding purple acid phosphatase (PAP) were cloned from potato (Solanum tuberosum L. cv. Désirée) and expression of the corresponding genes was characterised. StPAP1 encodes a low‐molecular weight PAP clustering with mammalian, cyanobacterial, and other plant PAPs. It was highly expressed in stem and root and its expression did not change in response to phosphorus …
The Burholderia pyrrocinia Purple Acid …
Increasing the expression level of purple acid phosphatases (PAPs), which hydrolyze organic phosphate to inorganic phosphate (Pi), is an important response to Pi starvation in plants. PAPs are widely distributed in eukaryotes like mammals and plants but distributed in limited microorganisms. A PAP-like protein named Pap9 from Burkholderia pyrrocinia CH-67 was isolated.
Phosphorus nutrition in Proteaceae and beyond | …
04/08/2015 · Phosphorus nutrition of phosphorus-sensitive Australian native plants: threats to plant communities in a global biodiversity hotspot. Conserv. Physiol. 1 , cot010 (2013).
The effects of diversified phosphorus nutrition on …
We studied the effect of differential phosphorus (P) supply on the development of oat seedlings (Avena sativa L. ‘Arab’) as well as localization and activity of acid phosphatases in tissues and root exudates.Plants were grown for 1–3 weeks on nutrient media with inorganic phosphate (+P, control), reduced Pi (0.1 P), phytic acid (PA) as organic P source, and without P addition (−P), in ...
Feeding hungry plants: The role of purple acid ...
01/07/2010 · Feeding hungry plants: The role of purple acid phosphatases in phosphate nutrition. ... Plant phosphate nutrition is determined by root–soil interactions. ... Many studies have focused on the role that plant purple acid phosphatases might play in Pi scavenging and recycling from Pi-esters and anhydrides during Pi starvation.
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The Arabidopsis Purple Acid Phosphatase AtPAP10 …
22/09/2011 · (2010a) Feeding hungry plants: the role of purple acid phosphatases in phosphate nutrition. Plant Sci 179: 14–27; Tran HT, Qian WQ, Hurley BA, She YM, Wang DW, Plaxton WC. (2010b) Biochemical and molecular characterization of AtPAP12 and AtPAP26: the predominant purple acid phosphatase isozymes secreted by phosphate-starved Arabidopsis thaliana.