Questions tagged [plant-anatomy]

The study of the form and internal structures of plants.

Filter by
Sorted by
Tagged with
0
votes
0answers
24 views

Why does the surface of this plant pistil look like this?

I came across this SEM and thought it was interesting. It depicts stomata on the surface of a pistil of a chameleon plant (Houttuynia cordata). I am wondering what the purpose is of this fibrous ...
0
votes
1answer
32 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 ...
2
votes
1answer
32 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, ...
0
votes
2answers
29 views

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 ...
4
votes
1answer
419 views

Why are trichomes important for both the roots and shoots of plants?

In what ways are trichomes vital to the plant? Why have them on the plant shoots as well?
1
vote
0answers
10 views

Order of arrangement of tissue layers in dicot Stem and roots due to secondary growth

While studying about the Secondary Growth in Dicot Roots and stems I came to know that ...
0
votes
0answers
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?
1
vote
1answer
37 views

Is fucus filamentous or colonial algea?

Am a bit new to biology SE. My question is wether fucus is filamentous or collonial form of algea?Does a form of algea have to be collonial or fillamentous or it can be something else? https://en.m....
4
votes
4answers
1k views

Stomata during night (respiration)

How does carbon dioxide from respiration diffuse out of the leaf during the night? Do stomata close completely during night?
1
vote
1answer
275 views

What’s the Difference Between Grass and Sedge?

What’s the difference between grasses and sedges? in terms of anatomy and classification.
7
votes
1answer
3k views

How do the flowers of Diphylleia grayi become transparent after rain?

Known as the skeleton flower, its flowers turn transparent in rain. How does it do so? How can it gain transparency in rain when water is already present in flower? Or is it because other components ...
12
votes
4answers
16k views

Why do plants store energy as carbohydrates and not as fats?

In my introductory biology class, we are learning about biomolecules. The textbook says fats are a more efficient energy store than carbohydrates. So my question is - why would plants store their ...
4
votes
0answers
83 views

Why plant tissues end in -enchyma?

Many plant tissue types end in the affix -enchyma. Etymology: enkhyma "infusion," from en- "in" + khein "to pour" Examples are parenchyma, collenchyma, and sclerenchyma....
1
vote
0answers
32 views

Function of the 'double' leaf on a pomelo tree

What is the function of the 'double leaf' (I'm unsure what the technical name is...) on a pomelo tree leaf? Furthermore, what evolutionary 'problem' is this structure solving? See image with arrows ...
0
votes
2answers
34 views

Are there ontologies for the description of the look of plants?

Are there existing ontologies for the description of the look of plants? I am looking for something formally defined giving me at least or better more information like in descriptions: They are ...
0
votes
1answer
48 views

Can we produce sugar using chlorophyll dissolved in ethanol?

I can't find anything about this on the net. I read in my (high-school) textbook that if plants get sunlight, water and carbon dioxide, and the catalyst called chlorophyll, they can make sugar. I'm ...
4
votes
1answer
69 views

Visual Quality Indicators for Soil and Plants

I would like to know what are the visual indicators that can be used to determining the quality of the soil and plants by looking at the in-situ photos? Can the following quality indicators be ...
0
votes
1answer
42 views

Are bryophyte sporangia multicellular?

My research on the matter can be summarized in a sentence: "It [sporangium] can be composed of a single cell or can be multicellular" (Source: https://en.wikipedia.org/wiki/Sporangium). Yet ...
2
votes
0answers
30 views

Is an axillary bud a type of intercalary meristem?

I have read that some cells that are left behind from the shoot apical meristem constitute axillary buds and that these are capable of forming a branch or a flower. So will the axillary bud also be ...
6
votes
1answer
227 views

Trees growing around objects vs pushing them away. Where is the threshold?

If a tree grows against a taut wire then the tree will grow around it, eventually enveloping the entire wire. This often scars the tree, and if the wire is thick enough, it will interrupt nutrient ...
2
votes
2answers
64 views

Are all dead plant cells (that die to do a job), have secondary wall?

Can we say that all plant cells that die to do a job (they are dead now), like the outer cell surface of the root cap, have secondary cell wall?
22
votes
6answers
7k views

What determines the spiral direction of plants?

Some plants and vines spiral clockwise as they go along (right direction) and some spiral anticlockwise (left direction). What determines which direction they spiral along? At first, I believed it to ...
0
votes
1answer
26 views

Cellulose structure

In cellulose structure, some beta glucose are inverted. I’ve read that therefore the hydroxyl groups stick on both sides, but aren’t there hydroxyl groups on both sides anyways whether it was inverted ...
4
votes
3answers
264 views

Are chilies technically peppers?

Nando's chain of restaurants (UK) refers to chili peppers as just "chilies". My friend and I had a discussion with regard to whether chilies can be called "peppers" or if they do not belong to the ...
3
votes
0answers
52 views

Names for the degrees for symptoms from drought (or other damage) done to trees

Looking out my window, I see trees suffering from drought. I once knew the name for the degrees visible, but I have forgotten and can't find it on the net. Attempt at describing "level of dryness" ...
-1
votes
2answers
349 views

Stem and Branch of plants

What is the difference between the stem of a plant and the branch of a plant. Is the branch part of the stem?
2
votes
1answer
38 views

What did Darwin mean by “degraded flowers”?

One of the chapters of The Origin of Species says that "Certain plants, belonging to the Malpighiaceæ, bear perfect and degraded flowers;" Full passage for context Do you know which plant ...
1
vote
0answers
15 views

Is it possible to accelerate active transport in plant vascular system using some electronic method?

I am from electronics background and got an understanding that electrical current affect plant growth. Based on this phenomenon, I got an idea but before I formulate my hypothesis and start ...
0
votes
1answer
75 views

Why do meristematic cells have prominent nuclei and dense cytoplasm?

I've been reading about meristematic cells having prominent nuclei and dense cytoplasm. However, I could not understand why it is that way. Could somebody please explain?
1
vote
1answer
121 views

Is the quiescent centre only found in monocot roots?

I read that the quiescent centre is present between the dermatogen and calyptrogen. As calyptrogen is only present in monocot root, does that mean quiescent centre is only found in monocot roots?
1
vote
2answers
1k views

What is the name of the groove down the middle of an anther?

I thought it had a name along the lines of interlocular groove, but I haven't been able to find that term anywhere.
-2
votes
2answers
154 views
38
votes
1answer
9k views

What is this unusual structure inside this banana?

I was eating a banana, and I found this strange biological structure inside of it. It was a bit tougher than the banana, and ran inside of the body through most of the length. To be clear, I peeled ...
1
vote
1answer
602 views

What are the main differences between tubers and taproots?

From reading accessible information about tubers and taproots I recognize that the main differences between tubers and taproots (as well as a fibrous root system) are: Shape Different nutrient ...
-2
votes
1answer
185 views

Hollow stalks in celery

When cutting a section of a celery plant stalk it appeared hollow inside, i.e. the cortex was hollow and encircled by the cambium, the vascular bundles, some cortex and the epidermis layer, thus the ...
0
votes
2answers
101 views

Are there organisms that “branch more” near the leaf?

(I'm a computer scientist) Tree branching is a fractal patterns in nature. I know stems typically branch in two at each level (self-similarity). I guess there are plants or other organisms that ...
1
vote
0answers
21 views

Are Hsp70 proteins only activated in response to heat shock?

Hsp70 proteins are chaperones that assist in protein folding in my plant physiology textbook it says the Hsp70 proteins were discovered by inducing heat shock. But do they only work in response to ...
11
votes
1answer
257 views

What predates on cactus in the Atacama desert?

Introduction Last week, I was in the Atacama desert where I've seen many cacti. Some / many of them were seemingly suffering from predation. Most of predation seemed to be on cardón, often restricted ...
2
votes
3answers
150 views

Are agave plants perennial?

If I were to harvest an agave plant for its nectar, would it kill the plant? I have watched videos of the process and it seems quite invasive.
1
vote
1answer
1k views

Why does spiral or annular thickening occur in water conducting plant vessels?

From what I behold, spiral and annular thickening of xylem and trachied cell walls leaves a lot of not thickened regions of cell wall. Lignin is the material which prevents water from escaping these ...
0
votes
1answer
2k views

What are pit fields?

I found this statement from my biology text book, "The sieve tube elements and the companion cells are connected by pit fields present between the common longitudinal walls". Is the pit field same ...
0
votes
1answer
81 views

plant crossing for creating breeding population

I read some material about plant breeding. For a self-incompatible plant with high heterozygosity, it said that after selecting the plant population based on phenotype/desired trait, a cross was done ...
2
votes
1answer
194 views

What does basipetal succession (of flowers/leaves) mean?

The definition says that basipetal succession is the arrangement of flowers such that the older ones are present at upper side and the young flowers are arranged towards base. But in this diagram: ...
1
vote
0answers
12 views

Is there any double staining method to visualise separate colour for plant tissue and fungal tissue?

Is there any double staining method for developing separate colour on fungal tissue and plant tissue when the said 2 types of tissues are intermingled? Unlike my previous question, this question not ...
0
votes
2answers
39 views

Why are hydathodes called hydathodes and not hydrothodes? [closed]

I can't seem to find any etymological root for the hyda- in hydathode. I expected the water-relater structure to be called a hydrothode, but it just isn't!
5
votes
1answer
374 views

Is it normal for corn to have multiple ears in one place?

I have (out of a mistake) one corn plant in my greenhouse and it made 4 cobs in one place. Is that normal?! I never saw something like this before.
3
votes
1answer
930 views

Is pith a ground tissue with no specialized function?

Here is a question from the book My Max Score SAT Biology E/M Subject Test (where the SAT is the exam taken by American high school students): Ground tissue with no specialized function A. Xylem ...
2
votes
4answers
5k views

Doubly-compound leaf examples?

I've got a project where we collect leaves, classify them, etc. There are some required classifications. One of the requirements is to get a doubly-compound leaf. What are some trees that are doubly-...
3
votes
1answer
1k views

What's the difference between a simple and 1-foliolate (unifoliolate) leaf?

How is a 1-foliolate leaf (e.g., Hardenbergia) different from a simple leaf?
0
votes
1answer
48 views

Reason behind colour of hibiscus and sunflower [closed]

What is the reason for the red colour of hibiscus and the yellow colour of sunflower?