Questions tagged [botany]

The study of plants and plant life.

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9 views

How does a diploid sporophyte form in non-recurrent apomixis?

I came across this definition of non-recurrent apomixis which occurs in angiosperms- In non-recurrent apomixis, both the egg-cell and embryo are haploid and embryo is developed directly from an egg-...
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Does the Calvin cycle occur in all the mesophyll cells of C3 plants?

The Calvin cycle occurs in the mesophyll cells of C3 plants. Does it also occur in all the palisade and spongy mesophyll or in specific mesophyll cells?
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1answer
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Different flowers have same colour

I notice that certain (wild) flowers have the same colour, although they are not closely related. For example, the yellows of the dandelion (Taraxacum) and the buttercup (Ranunculus) are, at least to ...
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1answer
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What are those berry-like plants in this photo?

I found this photo on a Flickr gallery and I have no idea what this plant is. Is it supposedly a type of berry or something?
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What actually kills a plant that requires winter dormancy if it is kept indoors all year?

In bonsai practice, beginners will commonly purchase a juniper (often Juniperus procumbens 'Nana'), which is an outdoor tree, and keep it inside all year. The tree invariably dies. It is commonly ...
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Do some vascular tissue cells have chloroplast?

Vascular tissue includes xylem, phloem, parenchyma, and cambium cells. Does photosynthesis occur in some vascular tissue cells? Do some of them have chloroplast? Vascular tissues are made up of xylem ...
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Sex of fern gametophytes

The following image is from Campbell Biology, 12th edition It says, "Each gametophyte develops sperm-producing organs called antheridia and egg-producing organs called archegonia". This ...
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2answers
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Is this some form of cabbage?

I would appreciate if someone could identify this plant. It's tall, but not very difficult to pull from the ground, and it has yellow flowers in large groups. I was told it's not mustard. Is it wild ...
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1answer
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What are these needle-like plants growing in the ground?

I was outside and noticed some strange, needle-like plants growing on the ground. I managed to search for "needlegrass" but couldn't find it. Here is the photo taken on April 20, 2021 in ...
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What is this plant with yellow large fruit?

Found this in a garden in San Francisco. Can't decide if it's pomelo, capri lemon or something else, ideas?
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1answer
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Species Identification and Care

We've had this plant for a while as one of two. And both have grown incredibly over the last year. We actually know very little about these beyond watering when they look a little sad and would like ...
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1answer
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What disease / parasite / fungi has affected the mango in the picture?

The mango is found to have some kind of fungi / worm on it's surface . This has affected a huge number of mangoes in the same tree . It can be described as white and fibrous / weblike structure near ...
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1answer
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Do spring varietes of cereals have a process of vernalization?

I was wondering about this question - Do spring varieties of cereals have some process of vernalization? It would be nice to have some description of the main processes' differences of spring and ...
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Can you grow a plant from a seed to flower stage with only Aeroponics system

I have recently started studying indoor farming with the help of aeroponics system. But from what I know have read (I may have misunderstood or misread something, so please excuse me for that). The ...
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Regarding secondary growth in dicotyledonous angiosperms

I had read that (and as this image shows) the secondary and primary phloem eventually get crushed due to the repeated division of cells forming the secondary xylem, during secondary growth in ...
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1answer
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What will happen if one keeps the photosynthesis plant active 24x7? [closed]

While reading this article online something said on it made me wonder. Also, there have been suggestions and a Dawn / Dusk type of ramp up and down to simulate the slow changes in the sun have value, ...
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1answer
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Why is movement of water through cell walls considered the apoplast and symplast pathway?

Why would the movement of water through cell walls be considered the apoplast and symplast pathway? I understand why it's considered the apoplast pathway (as the water is moving through a non-living ...
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Trying to identify a plant with pain-killing properties from northern Vietnam

My mother-in-law uses this plant to alleviate her pain caused by a severe case of spondylitis. This is a plant used in traditional medicine in her village near Hanoi, Vietnam. She doesn't know the ...
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1answer
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Dissection techniques for fruits and seeds

I'm doing some amateur botany, and I was keying some plants in the Brassicaceae (Cruciferae) family, which requires detailed information about the seeds of the plant. My question is, in a seed, how ...
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1answer
32 views

Why do cells in meristematic tissues lack vacuoles?

Cells located in meristematic cells in plants lack vacuoles. However, this contradicts with the fact that plant cells have large vacuoles to store water and keep the plant in an upright position. I ...
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1answer
84 views

What is the mechanism by which seeds stay alive while in storage? [closed]

I know folks who store seeds for months and sometimes a year before planting them. What is the mechanism by which they stay alive? Also some associated questions: How do the cells in the seed stay ...
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Of Autogamy, Geitonogamy and Xenogamy

Ok, so I know whats the difference between the three terms in botany. Autogamy is pollination within the same flower, Geitonogamy is pollination from the anther of one flower to the stigma of another ...
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Garden weed identification

I'd like to identify this weed found in a garden in northern England at this time of year (March). It reproduces using underground roots rather than flowers - so if you dig it up and leave any behind ...
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Are there any epiphytic plants that pull water from the air and supply terrestrial plants with excess?

Do you know of any epiphytic plants that pull water from the air and supply the excess to other terrestrial plants?
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Difference in rose seedlings with red or green seed leaves

I tried to sowing roses from rose hips the first time. (In autumn I collected some rose hips random from different bushes in the neighborhood. I mixed the seeds while sowing.) Now the seedlings grow ...
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119 views

What is this Patagonian biome?

This image was taken in Patagonia, near the Torres Del Paine National Park. What type of biome this is? There are trees and other vegetation, but they seem mostly dried. I think this is either a semi-...
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1answer
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If you only ate fruits, vegetables or smoothies would you be able to skip drinking water?

If you only ate fruits, vegetables or smoothies would you be able to skip drinking water? I do not see some animals (like squirrels) drinking water daily (doesn't mean they don't have a water source) ...
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1answer
38 views

Can I imbibe seeds before sterilization?

For an experiment I want to germinate lettuce seeds. For logistical reasons it would be convenient to imbibe the seeds by placing them in the cold for 2 days, afterwards I would sterilize the seeds ...
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1answer
66 views

How do plants prevent infection from retroviruses? [duplicate]

Why are plants not affected by animal viruses such as retroviruses? What prevents them from being infected?
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1answer
103 views

A word that includes plants and fungi, but not animals [closed]

Hello biologists and biology enthusiasts! I am working on a project which includes information about plants and fungi. It would be very helpful for me if there a word that means plants-and-fungi, but ...
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2answers
91 views

CAM Photosynthesis Oxygen Generation?

I've been looking into CAM plants - notably the snake plant which is native to West Africa. Upon researching the CAM photosynthesis cycle, I've found it fascinating that the plant stores CO2 at night ...
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2answers
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Hybrid seed production requires a male sterile parent. Why?

Hybridization is the process of crossing two plant species or varieties. In this case, two varieties of plants. In plant breeding, crossing is a very useful technique to improve the features of the ...
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1answer
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Can someone identify this tree in Playa Del Carmen, Quintana Roo, Mexico?

I just noticed this tree in Playa del Carmen in Yucatan. It was swarming with bats, the bat seem to be eating either the fruit or the flowers of the tree. Any idea what it is?
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1answer
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After removing the stigma from a flower, specifically the Crocus flower, does it eventually grow back or does the plant die?

After removing the stigma from a flower, specifically the Crocus flower, does it eventually grow back or does the plant die? The reason why I am asking is I am trying to find a way to mass produce ...
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Tree identification in the Caribbean

I live in Puerto Rico and I'm trying to identify this tree and if possible how to kill it since it is infested with termites. https://imgur.com/gallery/Xbmq0g8 Tree Closer view of flowers and leaves. ...
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1answer
27 views

What is the minimum water consumption for Arabidopsis and other plants?

I'm working on a project to design a self-contained plant growth environment for germinating and growing plants in space. It's important to know the absolute minimum amount of water and nutrients ...
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1answer
70 views

Osmotic pressure and turgor pressure details

I am a high school student and I am very confused in how we define osmotic pressure? Osmotic pressure is defined as the pressure required to stop the diffusion of solvent into a solution by applying ...
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1answer
44 views

Plasmolysis and turgor pressures

I am a high school student and I am a little confused in plasmolysis, when we study plasmolysis, we say that at limiting plasmolysis, the turgor pressure OR pressure potential reduces to 0 what do we ...
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1answer
64 views

Does anybody know what kind of tree is this?

I saw this tree yesterday and I liked it. It is around 1.5 m. I did some search on internet and thought it might be Holly, but I'm not an expert on trees. So I wanted to ask you, does anyone know what ...
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25 views

Does every ovule undergo fertilization at the same time?

After fertilization ovary becomes the fruit and ovules develop into seeds. Does this mean that all the ovules undergo fertilization at the same time?
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What is the use of having 3 antipodal cells and 2 synergids?

The embryo sac which is developed from functional megaspore contains 8 nuclei.2 polar nuclei and egg fuses with sperms.3 antipodal cells and 2 synergids degenerate after fertilization.Then what is the ...
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Comparing maintenance energy costs of plant biomass vs bacterial biomass

Im interested if anyone has an idea if this research has been done or how you would approach it. What is the energetic maintenance cost of (e.g) 2kg of some given bacterial cells vs 2 kg of a plant (...
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1answer
87 views

Spontaneous generation of fruit flies

I live in the South of England. It is currently winter. Whenever I buy bananas, even one, if I leave the discarded banana peel in my kitchen, within hours or even minutes, there is a cloud of little ...
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2answers
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In plant species' description, does the leaf length include the lamina and petiole, or only the lamina?

The description (partially pasted below) of Ramosmania rodriguesii in Verdcourt (1996) states that the leaves are up to 30 cm long. Does this length include both the lamina and petiole, or only the ...
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1answer
36 views

How do the High-Energy Electrons During Chemiosmosis Come from Water?

On Pg. 199 of Campbell, this is stated. Both* work by way of chemiosmosis, but in chloro- plasts, the high-energy electrons dropped down the transport chain come from water, while in mitochondria, ...
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1answer
33 views

When the leaf length ranges are given in a plant species' description, what do the numbers in parentheses represent?

Referring to a plant species, a paper I am reading (see citation below) says: "Blades are 4–5(6) mm long and (0.5)1–1.5 mm broad." I understand the numbers 4-5 and 1-1.5 would be the ranges, ...
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2answers
263 views

Do fish depend on plants for survival?

As far as I know, all land life depends on plants for survival. Plants convert sunlight to energy using photosynthesis, herbivores consume plants, and carnivores consume herbivores. All the energy is ...
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1answer
26 views

Red flowering climber ID

Here's another climber from the same garden in Araku Valley So what is this climber? Does it have any economical uses?
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1answer
49 views

Tree identification

I went to Araku few days ago and saw this tree in a garden . Here are the leaves I know the pic of fruits is a bit hazy and out of focus,but it's the best I have. These trees were in a cluster ,...
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1answer
73 views

Sextuplet corn (Zea mays with branched ear)

In 2019 I planted some sweet corn next to some Hopi blue flint type corn. Of course my mistake was apparent once I started to see the ears. The closer the two types were to each other, the more they ...

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