Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | Springer Nature Link |
|---|---|
| Author | Zöller, T. Skrøppa, T. Johnsen, Ø. Polle, Andrea |
| Copyright Year | 2003 |
| Abstract | Apoplastic peroxidases (POD) are thought to play important roles in the plant's defence system against stress. To find out whether apoplastic POD activities were affected by imprinting through the maternal reproductive environment, by the current environmental conditions or mainly by inherited genetic features, two families of Norway spruce (both grown for almost one decade at the same field site) were investigated. The families were progenies of controlled crossing conducted at low and higher temperatures, respectively. Crosses with identical parents originating from low temperature crosses displayed increased frost tolerance as compared with those crossed at higher temperatures (Johnsen et al. 1995). The physiological trait “apoplastic peroxidase activity” differed significantly between the two families but not due to the preceding environmental conditions during sexual reproduction indicating that non-Mendelian processes do not affect peroxidase activities in the cell wall. Isoelectric focusing revealed two major isozyme bands at pH 3 and pH 9 in all samples. Additional less prominent isozymes were observed, which showed significant variability between individuals.Apoplastischen Peroxidasen (POD) wird eine wichtige Rolle im Schutzsystem der Pflanzen bei der Anpassung an oder der Reaktion auf Stress zugeschrieben. Um herauszufinden, ob die Aktivität apoplastischer POD hauptsächlich durch die klimatischen Bedingungen der maternalen Kreuzungsumgebung, durch genetische Faktoren oder die akuellen Umgebungsbedingungen beeinflußt wird, wurden zwei Familien der gemeinen Fichte (Picea abies L.) untersucht, die beide etwa 10 Jahre auf demselben Standort wuchsen. Die Familien bestanden aus Nachkommen kontrollierter Kreuzungsversuche, die bei höheren und niedrigeren Temperaturen, d.h. im Gewächshaus bzw. im Freiland, durchgeführt worden waren. Nachkommen von Eltern, die unter niedrigeren Temperaturen gekreuzt worden waren, besaßen eine höhere Frosttoleranz als Nachkommen identischer Eltern, bei denen die Kreuzung bei höheren Temperaturen stattfand (Johnsen et al. 1995). Das physiologische Merkmal „apoplastische Peroxidaseaktivität“ unterschied sich signifikant zwischen beiden untersuchten Familien, aber nicht in Abhängigkeit der Umweltbedingungen während der sexuellen Reproduktion. Dies zeigt, dass apoplastische Peroxidasen offenbar nicht durch nicht-mendelnde Vererbungsprozesse beeinflusst werden. Alle Proben zeigten nach isoelektrischer Fokussierung stark alkalische und saure POD-Isozyme (pI ≤ 3 und ≥9). Andere POD Banden waren weniger stark ausgeprägt und zeigten eine hohe individuelle Variabilität. |
| Starting Page | 153 |
| Ending Page | 159 |
| Page Count | 7 |
| File Format | |
| ISSN | 00158003 |
| Journal | Forstwissenschaftliches Centralblatt vereinigt mit Tharandter forstliches Jahrbuch |
| Volume Number | 122 |
| Issue Number | 3 |
| e-ISSN | 14390337 |
| Language | German |
| Publisher | Springer-Verlag |
| Publisher Date | 2003-01-01 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | Subscribed |
| Subject Keyword | Apoplastic peroxidase environment genomic imprinting Norway spruce (Picea abies). |
| Content Type | Text |
| Resource Type | Article |
| Subject | Plant Science Forestry |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|