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Questions tagged [botany]

The study of plant life; e.g. angiosperms, gymnosperms, bryophytes, pteridophytes, and algae.

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What is the botanical term for plants attraction to light/water/gravity? [closed]

What is the scientific term for the botanical atrraction to Light/water/gravity?
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16 views

How do I efficiently develop a plant cultivar?

Or, perhaps: how do I develop a cultivar at all? First off, my knowledge and experience on the subject is close to nil. I've got a decent enough knowledge of gardening concepts, but have done ...
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0answers
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Are initials different from meristematic cells in plant biology? [on hold]

I am confused about initial cells. I know that initial cells are meristematic cells but are all meristematic cells initials?I have looked it up on various platforms even the internet and acclaimed ...
6
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0answers
87 views

Is the chemical composition of urine detrimental or beneficial for a tree?

Seeing as a lot of people around the world urinate against trees it came to mind that I never thought about how the tree responds to this. Is it detrimental for a tree if people urinate against them? ...
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0answers
42 views

Why don't floating plant evolve to live on saltwater

I have learn a history of azolla and wonder that, given that our planet has very large surface area of ocean, it was not dominated by plant like a freshwater. Only phytoplankton could live in the sea ...
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0answers
15 views

What genes in a plant determine whether a stem is erect or climbing?

I was randomly reading this Wiki article on Jasmine and this question crossed my mind after reading the following lines: Jasmine can be either deciduous (leaves falling in autumn) or evergreen (...
2
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0answers
29 views

Branch taking over a tree trunk

I stumbled upon a birch growing in sandy soil in a coniferous forest in central Russia. It looks like over time the tree trunk got bent towards the trail and one of the branches became the new trunk ...
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0answers
13 views

Tillers and stolons in grasses

In many grasses, tillers develop roots at their nodes etc.. Those roots can hit the ground and subsequently anchor in the soil, so eventually the tillers end up like something that is very hard to ...
3
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0answers
170 views

Regulation of LBD33 genes Arabidopsis. If LBD 33 gene is up-regulated by auxin then why does expression decrease when increasing auxin concentration?

I have a question regarding the regulation of lateral boundary domain genes in Arabidopsis (specifically LBD33). I am an undergraduate student trying to understand the results of a lab where I measure ...
1
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0answers
18 views

'Terminal' and 'lateral' apical buds. Monopodial and sympodial branching

Macroscopically, it seems to me that the difference between 'lateral' apical buds and 'terminal' apical buds and monopodial and sympodial branching is often rather superficial, if not random. ...
2
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1answer
67 views

Why is xylem a tissue and not an organ?

My textbook "CGP AS-Level Biology Exam Board: Edexcel Complete Revision & Practice" says xylem is a tissue. Then I read from this website that "[Xylem's] major components include xylem parenchyma,...
4
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1answer
36 views

Do you know which is this small flower in Asturias?

Was located in the Turón valley on Mieres, Asturias, Spain (https://goo.gl/maps/BMwyfWtiSdw). Found it at 900 meters of altitude. The plant is just about 8 cm high maybe. All the ones I've found were ...
3
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1answer
34 views

Can you name this plant that likes shade on Asturias?

This was located in the Turón valley on Mieres, Asturias, Spain. Usually, I find this plant in shadowy, not too illuminated spots, although I'm not sure if that's important or simply coincidence. This ...
4
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1answer
60 views

Fruit identification - What is this green long fruit?

I found this fruit in the South of France, but I have no Idea what it is. It's a green, hard fruit. I tried to cut it to see the inside (on the following pictures). It fell from a big tree, but I don'...
0
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1answer
27 views

Do all cells of a plant contain chloroplasts? [closed]

If the answer is no, then how do plant cells tell whether they need to keep chloroplasts or not? What kind of signals are used, and how are chloroplasts eliminated?
4
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2answers
103 views

Why does the seed of the coconut tree have a liquid in it?

What is the purpose of water in the coconut seed? The reason I ask this is that I was reading about coconut water and all the benefits it has for us Humans. But why does the tree put a liquid in the ...
4
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1answer
58 views

Can someone help me to identify what kind of pear is this?

I went to my local groceries supermarket (in Lima, Peru) and found this cheerful looking pear named locally as "pera canela". But I found it weird as the only variety which I'm aware of is Packham's ...
1
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1answer
42 views

What is this plant that spontaneously sprouted in my balcony?

I have a big pot on my balcony that has inhabited many kinds of plants over the years. One spring I got to unexpected sprouts from seeds the size of an apple or orange seed. One survived and grew to ...
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0answers
41 views

Would there be any particular reason to choose strawberries for this DNA extraction tutorial?

The NileRed video What is DNA and what does it taste like? | Edible Chem shows the extraction of a surprisingly large amount of DNA from some strawberries. At 02:22 ...
3
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0answers
20 views

Is this a Loranthus Europaeus?

Location: Austria, Vienna Ottakringer Wald Date: Feb 8 I found something beneath a tree with epiphyta , which I thought to be Viscum album but is vividly yellow instead of white and I found no ...
1
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0answers
17 views

Biological Nitrogen Fixation

I just studied Biological Nitrogen Fixation and saw it's reaction but i do not understand why there is 8 electrons and 8 protons are involved and Hydrogen molecule is formed side by side along with ...
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0answers
9 views

Ploidy of Central cell in embroidery sac

In the unfertilized embryo sac in angiosperms, is the central cell considered to be haploid or diploid? though it has two polar nuclei but both of them are haploid, so I don't think it can be ...
0
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2answers
40 views

Can I change the genetics of a group of plants naturally?

I have been thinking about introducing all sorts of types to certain environments where the plants will have to adjust to survive. For example having a dark area with one light source right next to ...
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0answers
30 views

plant uptake of large molecules

I have read several studies concluding that plants can indeed take up molecules with a molecular weight largar than 390 g/mol. Does this mean plants do also take up large molecules like hormones if ...
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0answers
22 views

What is this strange flower which I found on an upheaval in Rhodes (Greece) in July?

It looks like it carries berries instead of blossoms. Is it actually a flower or rather a baby tree? I found it in a Google image search (see here: https://goo.gl/images/vfBDSP), but there was no ...
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1answer
60 views

What is the difference between monoecious and homothallic?

In my plant reproduction book there are two distinct definitions for these two terms, but when I read them I found out that they are very much alike that I was confused and couldn't catch the ...
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0answers
26 views

What species of short plant is this in Iran?

Anyone knows the name of this Iranian local species?
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0answers
33 views

Can two half-cut potatoes fuse back together?

If I cut a potato in half, then I hold the two parts together, will the two halves fuse back into a single potato?
0
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1answer
62 views

Difference between vacuolar and symplast pathway [closed]

what is the difference between Vacuolar Pathway and Symplast Pathway ? Is the symplast pathway does not take into account the vacuole to vacuole movement?
0
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0answers
34 views

What is the difference between pits and perforations in xylem?

What is the difference between pits and perforations in tracheids and vessel elements? Based on the diagram in this website, are they both simply holes? If so aren't pits and perforations (or pores) ...
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0answers
2 views

solute potential of guard cells in stomata increases with glucose but not with starch

In sugar starch theory and potassium ion inflow theory the solute or osmotic potential increases with glucose, in guard cells but not with starch why? The same case is with malic acid i-e the solute ...
0
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0answers
16 views

How exactly is the sunflower seed pattern calculated?

I came across this https://www.mathsisfun.com/numbers/nature-golden-ratio-fibonacci.html and the rotation simulator just below the first section says to type in a number for each rotation. But, it ...
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0answers
14 views

Why Populus Nigra does not grow in Israel?

What are the obstacles for Populus Nigra? It, especially the pyramidalis (Italian) variety is considered quite Southern plant in Russia.
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0answers
30 views

What does the word specific epithet mean? [duplicate]

Is the species for Rosa indica and Mangifera indica 'indica' as you can see is the same in both. What does this signify. It is obvious that it has different species as they have different genus.
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0answers
46 views

Is callus totipotent or pluripotent?

Is callus (in the context of plant tissue culture) totipotent or pluripotent? As I understand, the difference between totipotency and pluripotency is an ability to differentiate into extraembryonic ...
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0answers
74 views

What is difference between light harvesting complex , reaction centre and photosystem

my book says light harvesting Complex are made up of hundred of pigment molecule bound to protein. Is photosystem has all the pigment (except one molecule of chlorophyll A )forming light harvesting ...
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0answers
11 views

How does salt content affect flowering of halophyte?

My teacher told me that one adaptation of halophyte is that they flower at specific time e.g. rainy season to reduce salt exposure (as salt content affects flowering of plant thus affect the ...
4
votes
1answer
24 views

Do unique communities of bacteria form inside water storage in plants?

I assume that plants, like animals, have an ability to fight off bacteria that invade their cells (support: here and here. However, water often harbors quite a bit of bacteria in even unsuspecting ...
2
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0answers
58 views

Why does water stress lead to alkalinity of xylem sap in plants?

I was reading this book: Plant Physiology and Development, Sixth Edition by Lincoln Taiz, Eduardo Zeiger, Ian M. Møller, and Angus Murphy when this doubt came to my mind. Abscisic acid, the stress ...
2
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1answer
38 views

What is the biological name of this plant?

The plant was observed in a rural area near Digha.
3
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1answer
144 views

Why aren't leaves black?

I s'pose this is a variant of the age-old question, "Why are leaves green?" It's fairly easy to ask teh internets and find plenty of answers for that one. I have a different but related question: ...
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1answer
24 views

Need help with these invasive vines damaging trees causing tree limbs to break

I need some help identifying various vines growing and girdling trees:
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0answers
18 views

Veins in Plant Leaves (terminology)

Why do we call the vascular bundles in plant leaves "veins"? I think its probably because the xylem and pholem serve circulatory function analogous to the human body's circulatory system with arteries ...
3
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0answers
27 views

Pre-linnaean names, where can I ask about current IDs?

I run a large website with lots of historical herb books. For the older ones, finding out current botanical names is very difficult. Can I ask here? If not, does anybody know where I could ask what ...
1
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1answer
37 views

Is this plant lantana camara? If not what is it?

I was in a botanical garden recently and wasn't able to find the tag on this plant. The diameter of the entire flower tended to be around 5cm. Google seems to suggest its lantana camara but I'm not ...
2
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0answers
43 views

Berries ID - Can someone help us identify this plant?

Found it in the hilly areas of Meghalaya - a state of India. Not sure if is edible or not, we haven't tried it but it gives a beautiful blue color when used for dying. The seeds are big and there ...
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1answer
25 views

How to promote acorn maturation

I have acorns from an oak tree. They look like: but I would like to speed up their maturation so they split and I can separate the caps: How can I speed up this maturation process?
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1answer
54 views

Why is “VOLVOX” not considered to be in PROTOZA?

Volovox is an Algae, but it moves with the help of Flagella. Protozoa has members that move by Flagella. Why is Volovox taxonomically in the Algae instead of Protozoa?
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0answers
25 views

Can Tajima's D and other population genetic tools be used to copare Arabidopsis ecotypes?

I am currently investigating 2 genes in Arabidopsis taliana that are a product of a recent duplication even (observable from synteny and phylogenetic analysis). In addition to the molecular and ...
2
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0answers
18 views

Looking for realistic representation of angiosperm sperm cells during pollination

I've scoured Youtube, google, and a handful of my botany textbooks for a cellular-scale photo, animation, or video illustrating an angiosperm sperm cell during pollination/fertilization. ...