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

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12
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2answers
701 views

Do electromagnetic waves outside the visible spectrum have any role in photosynthesis?

Does photosynthesis occur only in the visible spectrum? If there is a way to completely remove all other electromagnetic bands from the sunlight, including infrared (IR), will photosynthesis continue ...
0
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1answer
49 views

Which sex of trees bears fruit? [closed]

Which sex of trees bears fruit? The males or females? And what specifically cause that one to bear fruit. Is it the same as it is with blossoms in trees?
0
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1answer
22 views

Plant dependence on CO₂ levels

I was wondering which kind of plants would survive longest without CO2 : plants with fatty, thick leaves or plants with thinner, less fatty leaves? And can we conclude that the plant species that are ...
5
votes
1answer
238 views

What is this plant …?

I would like to know what is this plant ? Does anybody have an idea ? Somebody offered it to me but there is no explanation about how to care about it... Some purple flowers appeared, during 2-3 ...
4
votes
1answer
77 views

Is a Ginkgo tree a conifer?

I know Ginkgo is a gymnosperm, but I was wondering whether Ginkgo is also technically a conifer. I did a Google search, and found several confident authoritative-sounding answers. Unfortunately, those ...
1
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1answer
37 views

Coniferous trees in temperare rain forests

In temperate rainforest, the dominant plant form is often coniferous trees (source). However, coniferous trees are also the dominant plant form in a very different climate and form a different biome ...
5
votes
1answer
100 views

What controls leaf senescence in deciduous tree species, and how can I predict it?

If I want to predict litterfall, what data do I need to collect, and what statistical model might I use? For example, I might use the following coding to record phenological stage every other day, or ...
2
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1answer
34 views

Grafting vegetables onto fruit-bearing trees

There are multi-fruit trees with as many as 40 different fruit, but would it be possible to graft a vegetable onto a tree? Or maybe something in between, like grafting onto an apple tree a fruits in ...
7
votes
1answer
407 views

Are pulp cells (in oranges) normal plant cells?

Does a pulp cell contain all the elements that a 'normal' plant cell contains? I've searched for an hour to find more information about this but couldn't find anything useful. Is the pulp cell the ...
1
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1answer
61 views

What is this vinca like vine?

What is this vinca like vine? Is it poisonous? 62521 USA Illinois
4
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1answer
2k views

Does photosynthesis require only direct sunlight

I have learned throughout my basic science classes in high school that in the process of photosynthesis, plants absorb sunlight & produce food. They use carbon dioxide & water vapour. My ...
2
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3answers
64 views

Identifying a tree with an image

I have trouble identifying a tree that I saw on a vacation. This is the image: I would like to know the name of the tree, I only know that its not European.
4
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1answer
35 views

Can plants grow under extreme (>1%) carbon dioxide concentrations?

Related to but distinct from this question due to the concentrations involved. While small carbon dioxide concentration increases can positively impact plant growth under some circumstances and at ...
0
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0answers
24 views

what's the vascular cambium?

is the vascular cambium equivalent to interfascular cambium or intrafascular cambium? isn't the vascular cambium similar to the intrafascular cambium because both occur inside the vascular bundle
21
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4answers
2k views

How do trees manage to grow equally in all directions?

I was walking down a road with these beautifully huge trees when this question occurred to me. Large trees with many thick branches have to grow equally in all directions, or they would tip over. Is ...
3
votes
1answer
60 views

What does the empty space in the bamboo stem do?

Is the empty space inside a bamboo stem a xylem? And why is the space so large?
0
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1answer
45 views

Why are some vegetables/fruits seasonal?

How does the mango tree perceive the summer season, so tree starts producing the fruits? Every tree requires sunlight to grow but what limits the production of fruits to a certain season? For ...
2
votes
0answers
35 views

Native vs Immigrant plants [closed]

Is this statement applicable to any known plant/region combinations? Plant species X, Y, and Z are truly indigenous to region R. Other "immigrant" species can be destroyed by drought or harsh ...
3
votes
0answers
28 views

How many cells are there in the apical meristematic tissue?

How many cells are there in the apical meristematic tissue? Looking at this picture... , I would tend to think that there are few hundreds cells in the meristem tissue. But I guess this is a ...
6
votes
3answers
2k views

What evolutionary adaptations cause trees to grow tall?

I think there are some obvious costs for trees to grow tall. Carbon and other nutrients costs, maintenance cost, energy cost (for growing, to bring water (and nutrients) up to the higher leaves, ...
3
votes
1answer
88 views

Does a presence of ants on a plant mean that the plant has been infested by aphids?

Ants protect aphids from their predators (such as ladybirds): Aphids and other hemipteran insects secrete a sweet liquid called honeydew, when they feed on plant sap. The sugars in honeydew are a ...
0
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0answers
13 views

What's the more abundant biopolymer: chitin or (ligno)cellulose?

Chitin is considered the most abundant polymer after cellulose (e.g., Rinaudo, 2006). Does anyone know of specific biomass estimates in literature, probably also differentiating between terrestrial ...
2
votes
1answer
28 views

Does amylolysis occur in vegetables if stored below 0⁰ Celsius?

Assume that we have a plant, e.g. kale, which is prone to amylolysis if not harvested during a frost period. If it is harvested and put in a household freezer, such that it is frozen solid slowly ...
3
votes
2answers
82 views

What does “chlorophyll photosynthesis peak” mean in relation to photon wavelength?

When reading about how green / leafy plants work, I saw that they have chlorophyll A & B, which allow the plant to use the energy from light by capturing and transforming. When reading about ...
2
votes
1answer
45 views

Molds and fungi usually found on book pages: identifying and preventing further spread

I know I can use bleach to kill most of the spores that live on my walls. I know I have to keep humidity below a certain level and temperature above another to prevent the spread of mold. I have read ...
1
vote
0answers
16 views

Why do Sorghum Bicolor leaves roll up?

In A level Bio today we talked about abcesic acid as a stress hormone, and its ability to reduce osmotic potential around guard cells to close stomata. My question is, is abscesic acid in sorghum ...
2
votes
0answers
36 views

Among xerophyte plants, which one grow faster and consume water the least? [closed]

In an effort to select for the most suitable plants to possibly colonise desert and stop its expansion, what would be the xerophyte plants that grow the faster and expand on surface, while using the ...
1
vote
1answer
53 views

Ants eating bark [closed]

Was out walking in the park today, came across a tree, and me being me I thought "Hey lets try climbing this thing for fun." But something strange struck me, the tree was completely devoid, as in ...
5
votes
3answers
199 views

Why are there no tree-like plants that grow in lakes?

Looking at aerial photos of boreal forests, with dense woods clear-cut by quiet lakes, I wondered why exactly are the woods so clear-cut at the edge of water? Why won't trees develop adaptations that ...
1
vote
1answer
31 views

Pollinator mating system in orchids

I came across three terms in an article on pseudocopulation. However I don't quite understand what it means. They are: 1) solitary and haplodiploid 2) social and haplodiploid 3) diploid These ...
2
votes
0answers
33 views

Rosemary room temperature at winter

I consistently read in non-scientific resources that I have to put my rosemary to low temperature (about 10°C) in winter (unless I don't want it to freeze). I googled, but I fail to find a scientific ...
1
vote
1answer
177 views

Difference between thylakoids and lamellae in a chloroplast?

I'm slightly confused as to the difference between thylakoids and lamellae. My understanding was that thylakoids are 'discs' that are stacked into grana and there is a membrane between the grana ...
10
votes
5answers
996 views

Is it possible to genetically modify a plant at home?

Would I be able to genetically modify a plant at home? What equipment will be necessary? I think it might be a fun change from the 'norm' of regular hybridisation, to try some inter-family gene ...
24
votes
1answer
1k views

Ripening bananas artificially: What is the biological reason

I am a resident of the tropical island of Sri Lanka, and we have a strange traditional method to ripen our bananas quickly. What we do is this: We dig a pit in earth that is enough to put the whole ...
14
votes
2answers
348 views

Why was it so hard to decode the corn genome?

My teachers growing up told me it was impossible to decode the maize genome. But yet its been done. Why was decoding the genome so significant, and what made it so difficult?
0
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0answers
51 views

Why vivipary is not found in all mangrove plants?

An interesting characteristic feature of mangrove plants is vivipary or viviparous germination...but some notable members of the family like Heritiera sp.( there is even a mangrove forest named after ...
1
vote
0answers
29 views

Endemic plant families on islands?

Endemism on islands is quite a common phenomenon, at least at the level of species or genera. Old continental fragments like Madagascar or New Caledonia may even harbour endemic families which went ...
3
votes
3answers
227 views

Where does crop biomass come from?

Each year, large volumes of crop are harvested from fields. Where does this biomass get replenished from?
3
votes
1answer
39 views

Why are the genomes of some trees so large?

For example, the current longest known genome belongs to a tree: http://motherboard.vice.com/read/the-largest-genome-ever-sequenced-belongs-to-a-tree I have heard that this could potentially be ...
2
votes
1answer
24 views

Does the tannin level in plants go down or up after they die? Or does the tannin level stay the same regardless?

Does the tannin level in plants go down or up after they die? Or does the tannin level stay the same regardless? As they decay, do they release more tannins or does the production stop?
1
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0answers
12 views

what is the role of ctab in plant dna extraction [duplicate]

i get good results for dna extraction by using ctab method but i doesn't have that proper information for role/function of ctab and other chemical. Anyone know, please briefly explain ......
1
vote
0answers
48 views

Is it possible to simulate the effects of high altitudes for plants?

Note- I considered asking this on gardening.stackexchange.com but i believe it is better suited for this site since it deals with more complicated material. As I understand it, certain plants ...
2
votes
1answer
62 views

The biology behind tree pruning and hedge trimming

I read two contradictory arguments which both seem logical to me, related to the tree pruning and hedge trimming: You should prune/cut trees only outside the growing season, when the tree is ...
3
votes
1answer
70 views

What does the root “phyllum” mean used botanical binomial nomenclature

I often encounter the root "phyllum" in bionomial names in botany, but I've had trouble finding an actual definition for this root in any Latin dictionary outside of its taxonomic meaning. From ...
1
vote
2answers
74 views

What kind of technology is required for plant seed DNA printing? [closed]

I'm a programmer so I have little knowledge in the field of biology. However I have an interest in plants, GMOs and DNA (in terms of programming). So, I want to know what kind of technology is ...
5
votes
1answer
64 views

What is the name of this plant with many purple blooms with orange inner parts?

I have photographed the following plant in Pittsburgh, PA. It has many blooms and every bloom is very small (about 5mm diameter), purple on the outer and orange in the inner. You can see it here: ...
5
votes
2answers
1k views

Does cooking or ripening reduce the concentration of solanine in nightshade?

I recall a story from one of my Botany professors where he encountered a woman picking Solanum dulcamara (nightshade) berries. When he asked her what she was doing with them, she responded that her ...
2
votes
1answer
35 views

Somatic Mutations in meristem tissue in plants

In angiosperm, in which layer of the meristem does a new mitotic mutation occurring has chance to be found in a pollen grain or in an ovule? I also welcome some insights about non-angiosperm plants.
1
vote
1answer
327 views

Do plants absorb toxins from the soil?

Consider a plant like Aloe Vera that grows up in a toxic environment where the concentration of pesticides, and materials like lead, mercury, cadmium, arsenic etc is very high(e.g. Marshland dumping ...