MasterPure™ Plant RNA Purification Kit

Applications

  • Purification of plant total RNA (including small RNAs) suitable for many applications, such as RT-PCR, Northerns, miRNA analysis, and expression profiling with microarrays.
The MasterPure™ Plant RNA Purification Kit enables efficient purification of intact total RNA from plant tissues, including small RNAs that are typically lost when using column-based RNA purification. The protocol can be completed in less than 1 hour and may be scaled up to obtain larger amounts of RNA.The MasterPure Plant RNA Purification Kit contains a Plant Tissue and Cell Lysis Solution designed to inactivate and remove polyphenols and polysaccharides, while releasing nucleic acids and inactivating ribonucleases. The contaminants are simply pelleted with the insoluble cellular debris, and the RNA is further purified by a simple protein precipitation step and nucleic acid precipitation step. There is no size selection with the MasterPure procedure, so small-RNA types are not lost. Unlike other plant RNA purification kits, a DNase I treatment step is included as well as reagents to remove the DNase I and remaining contaminants, so the resulting RNA is highly purified (Table 1). The purified RNA can be used directly in many molecular biology applications, e.g., end-point (Fig. 2) and real-time RT-PCR, Northern blots, miRNA analysis, and expression profiling with microarrays. Plants tested include banana, citrus, cotton, geranium, grape, maize, maple, raspberry, soybean, strawberry, and tomato leaves, alfalfa sprouts, soybean seedlings and seeds, maize seedlings and mature roots, pine needles, and field mustard seeds.Benefits

  • Optimized technology for plant tissues to remove inhibitors.
  • No spin columns that reduce yields; small RNAs are purified effectively.
  • Protocol is complete in less than 1 hour.
  • High purity and yields of RNA.
  • No phenol, chloroform, or other caustic solvents.

Figure 1. Purification of intact plant RNA from a variety of plant tissues. Plant tissue RNA was purified using the MasterPure™ Plant RNA Purification Kit, and 500 ng of each type of RNA was separated on a 1% formaldehyde gel and visualized with SYBR® Gold I. Lanes M, RNA ladder; lane 1, maize seedling RNA; lane 2, grape leaf RNA; lane 3, alfalfa sprout RNA; lane 4, strawberry leaf RNA; lane 5, raspberry leaf RNA; lane 6, pine needle RNA; lane 7, maize root RNA.

 

Figure 2. End-point RT-PCR of RNA purified using the MasterPure™ Plant RNA Kit and other kits. RNA was reverse-transcribed using the MMLV Reverse Transcriptase 1st-Strand cDNA Synthesis Kit and random primers. FailSafe™ PCR was performed with PreMix D and 10 pmol of each primer, using 1 µl of each cDNA. The RT-PCR products from each type of cDNA were separated by electrophoresis and visualized with SYBR® Gold I. Lanes M, 100-bp ladder; lane 1, vendor 1; lane 2, vendor 2; lane 3, vendor 3; lane 4, MasterPure Plant RNA Kit; lane 5, MasterPure no-RT control; lane 6, no-template control.

 

Table 1. Assessment of purity and yield of RNA purified using different methods.

Vendor Source Yield (µg) A260/A280 A260/A230
Epicentre Maize leaves 17.67 2.01 2.017
Vendor 1 8.23 2.10 0.566
Vendor 2 13.39 2.21 1.37
Vendor 3 2.83 1.98 0.153
Epicentre Grape leaves 8.98 1.49 0.524
Vendor 1 0 ND ND
Vendor 2 0.336 1.48 0.124
Vendor 3 0.264 1.54 0.201

ND: Not determined

 

Table 2. Yields of RNA obtained with the MasterPure™ Plant RNA Purification Kit.

Source of RNA Yield (µg)
Alfalfa sprouts 36.1
Banana leaves 6.2
Grape leaves 9 – 25.9
Maize leaves 17.7 – 55.7
Maize seedlings 28 – 37 (leaf)
35 (stem)
19 (root)
Maize roots (mature) 18.6
Pine needles 5.2
Raspberry leaves 15.7
Strawberry leaves 12.4
Strawberry roots 46

 

Figure 3. Real-Time PCR detection of plant messages of varying abundance in RNA purified with the MasterPure™ Plant RNA Purification Kit. Maize leaf cDNA samples from Fig. 2 were used in real-time PCR with the FailSafe™ PCR System and 10 pmol of each primer. Messages detected were MatK (purple), GAPDH (green), actin 1 (red), and TubG1 (blue).

 

Ordering

Catalog No. Size
MasterPure™ Plant RNA Purification Kit
MPR09010 10 Purifications
MPR09100 100 Purifications
Contents: Plant Tissue and Cell Lysis Solution, 2X T and C Lysis Solution, MPC Protein Precipitation Reagent, RNase-Free Water, RNase-Free DNase 1, Proteinase K, RiboGuard™ RNase Inhibitor, 100 mM DTT, 10X DNase Buffer.
Note: Catalogue number MPR09010 has been discontinued, effective from August 2014. This product is available only until stocks last.