Polystichum munitum. Sword Fern. In the Dryopteridaceae family. This is a common fern that is found all throughout Northern America and like most ferns this one is attached to a rhizome. Sword fern is easily distinguished as the pinna are shaped like a sword. The very base has a little attachment that sticks out like the handle of a sword. Sori are key identifiers for ferns, the shape and color matter. For this species the sori are light yellow and the indusium are umbrella shaped. Sword fern favors mixed conifer forests and loves rich acidic soil. Its an indicator for humus hot spots. Heck I’ve even see this fern in foothill rock crops and low land riparian communities, its quite abundant. If you took plant biology you remember that ferns need water to reproduce due to their “swimming sperm”. The fronds can live up to 1-2 years before weathering away. Fern fiddleheads and rhizomes are edible and were valuable to the Quileute, Makah, Klallam, Squamish, Sechelt, Haida people. Our first nations knew the land like they were from the beginning of time. Sword fern is a lovely, charismatic plant that is easily recognizable and easily lovable. This species holds high importance for soil quality control and adds more greenery which never hurts.
Aristaloe aristata, "lacy aloe" or "guinea-fowl aloe" is actually not an aloe at all! It's more closely related to an Astrolobas (another neat one), both in the family Asphodelaceae. This plant is indigenous to South Africa and Lesotho. It inhabits a range of different environments, making it extremely adaptable. "From the dry, sandy Nama Karoo, to the high grasslands and cold mountain slopes of Lesotho, to the shady forested valleys of KwaZulu-Natal." I'd say it would make an excellent beginners plant! This plants is one of my favorites to look at for its prime example of the golden ratio, and it sends out a huge inflorescence with beautiful orange, tubed flowers rich with nectar. This plant is occasionally called 'Torch plant' due to the arrangement and height of the flowers resembling a lit torch!
Still my favorite, the #Arabidopsis pendant, large format, in shiny sterling silver.
3 4719 hours ago
Mindfulness Through Nature Journaling class begins 14 Feb🌿📝This year I will be running a 4-week workshop to help you slow down & reconnect with nature through a creative practice. Book at www.studioone.org.nz @studioone.toitu
Look - there’s flowers on the way! 🌼
A spontaneous de-tour to check up on the former Aloe plicatilis, now Kumara plicatilis, turned out to be spot on perfect today. 🌼 A couple of weeks more and visitors @botaniskhavekbh will get a treat of beautiful red flowers in the temperate greenhouse 💚
It has been a flower-picking sort of a morning. It always hurts me a little to pick them at the height of their bloom as they just go in the plant press and no-one will get to enjoy their beauty in there 🌼 Last look on Aloe sinkatana before the press is closed…
Different stages of my RNA extraction today.
I isolate it from leaf tissue powder using a CTAB extraction buffer (1st picture). Afterwards I remove membranes, proteins and other cell components by extracting with chloroform twice (to be sure 😉). You can see the different phases in pictures 2-6. Note that after the 2nd chloroform extraction there are still unwanted residues in the tube, so it was good to do it twice. From there I will work with the supernatant and purify the RNA more. .
These are Nicotiana benthamiana plants, close relatives to tobacco. Much prettier than I would have expected 🌸
It is a commonly used model system for transient gene expression. This means that a transgene (foreign DNA) will only be expressed for a short while and not be passed on to the next generation. Of these plants some leaves are genetically modified, but the flowers are not. .
0 82 days ago
I noticed this species for the first time on Monday whilst balancing on the stone wall in greenhouse. 🧗♀️ I wondered why Martin (the succulent gardener) had put it all the way up there, but now that I’ve read up about Aloe succutrina I can see that the placement in the greenhouse might be inspired by its natural habitat - high up on cliff faces and rocky outcrops! 😆 The species is endemic to Cape Town, South Africa, where it occur naturally in Fynbos habitat 🇿🇦 Other succulent relatives that can be found there are Kumara plicatilis and Aloiampelos commixta - pictures to come 🌵
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after // before : succulents are amazing plants, and are very easy to propagate. taking one "leaf" from a healthy, mature plant, is enough to sprout an entirely new one. the older ones were planted in august, and the new ones were planted on friday. cells de-differentiate and obtain pluripotency, similar to stem cells at the end of the leaf. they undergo rapid re-differentiation, creating iterative new leaves. the "wound" needs to be neat and the leaves need to dry for a week or so before they undergo re-differentiation. succulents are an example of CAM photosynthesisers (crassulacean acid metabolism), which helps them cope with the harsh &arid environments they thrive in. Instead of photosynthesising during the day, they respire, closing off their #stomata (open pores facilitating gas exchange) during the day and reopening them at night, the opposite of other plants. this prevents water loss and keeps the plants full of water, which is why the leaves are so plump and #succulent 🌵 other examples of CAM plants include #agave, #pineapple, and #cactii. this advance form of photosynthesis is theorised to be the most recent to #evolve. they need minimal watering but high light to grow well.
#plantscience#plantbiology#botany#research#laboratory#cam#succulove#instaplant#cactus#phd#glasgow#phdlife#postgrad life #genetics#stemcells#urbanjungle#biologybasics
One the left you can see a young and healthy poplar leaf 🍃The right shows a 1 year-old leaf of a tree that has never been fertilized 🍂
Plants need elements like nitrogen, phosphorous and potassium for their growth. Without these, they cannot synthesize proteins, DNA and other parts of the cell. N, P and K are so called macro nutrients, because they need large amounts of them. Micro nutrients like magnesium, sodium or molybdenum are still essential for plants, but are required in much smaller quantities. .
Building out our new LED light facility, and it is so perfectly level and plumb that I’m just going to leave this level here so I can brag about my precise squareness. #science#diyScience#plantbiology
2 355:33 PM Dec 24, 2017
A minor in #PlantBiology focuses on plant biology, the study of plants, including their structure and function, ecology, evolution, and diversity. With this minor, students can broaden their knowledge of plant science which can be utilized in an interdisciplinary job market associated with plant biology.