Why siphonogamy is considered to be fertilisation?

  • Thread starter Frigus
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In summary: The process of transferring gamete to embryosac is considered to be a different process because the gamete is transported outside of the organism.
  • #1
Frigus
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According to me fertilisation is fusion of gametes and siphonogamy is transfer of male gamete to the female gamete with the help of pollen tube.
According to these definitions it feels to me that fertilisation is process in which male and female gametes interact and fuse to form zygote.
Now problem is that it didn't make any sense to me that we are saying siphonogamy is a type of fertilisation in seed plants as siphonogamy seems something different from fertilisation.
Can you please tell me why siphonogamy is considered to be a part of fertilisation but not a different process.
 

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  • #2
The process of fertilization involves the transfer of one of two parents haploid genomes into the cell of another.
This occurs in both animal fertilization and pollenation.
The process of how the transfer is achieved is what differs with siphonogamy. This is a a functional different in a detail of the overall fertilization process. In the larger view (of combining haploid genomes), the processes are the same.

Now I am wondering what it is called in fungi.
 
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  • #3
BillTre said:
The process of fertilization involves the transfer of one of two parents haploid genomes into the cell of another.
This occurs in both animal fertilization and pollenation.
So can we that insemination in humans is a part of fertilisation.
 
  • #4
Hemant said:
So can we that insemination in humans is a part of fertilisation.
It would be the process of getting the sperm into vicinity of the egg(s) so that they can fertilize.
The siphonogamy is the process of the plant equivalent of sperm (pollen) growing out a cell process that actually gets to the plant equivalent of an egg and then actually transferring its haploid genome to the ova.
 
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  • #5
BillTre said:
It would be the process of getting the sperm into vicinity of the egg(s) so that they can fertilize.
The siphonogamy is the process of the plant equivalent of sperm (pollen) growing out a cell process that actually gets to the plant equivalent of an egg and then actually transferring its haploid genome to the ova.
I got it,
If we consider the definition of fertilisation given by you then it makes sense and this definition seems to be very appropriate to me.
Thanks.
 
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  • #6
I think I have misinterpreted what you have written,it is not definition of fertilisation that solved my problem as it is same.
Please correct me if I am wrong.
I understood that in siphonogamy transfer of genome to another gamete is done differently and siphonogamy also involves the process after entry into micropylar region of embryosac and not only entry into micropylar region of embryosac.
 
  • #7
My understanding is that siphonogamy involves both getting the sperm equivalent (pollen) to the location where the female gamete is, as well as transferring its DNA into the female gamete.

Animal fertilization involves the transfer of the DNA into the female gamete. However, getting the sperm to the location of the female gamete involves the insemination process (for internally fertilized animals (such as mammals, birds, some fish, insects)). Externally fertilized animals (like many fish and frogs) release males gametes outside of the female animal in coordination with female gamete release, however this has to be done at the appropriate time and situation.
 
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  • #8
BillTre said:
My understanding is that siphonogamy involves both getting the sperm equivalent (pollen) to the location where the female gamete is, as well as transferring its DNA into the female gamete.
Can I also know why process of transferring gamete to embryosac is not considered to be different than transferring genome.
 

Related to Why siphonogamy is considered to be fertilisation?

1. Why is siphonogamy considered to be fertilisation?

Siphonogamy is considered to be fertilisation because it involves the fusion of male and female gametes to form a zygote, which is the first step in the process of reproduction in plants. This fusion of gametes leads to the formation of a new individual with a unique genetic makeup.

2. What is the role of siphonogamy in plant reproduction?

Siphonogamy plays a crucial role in plant reproduction as it allows for the transfer of genetic material from the male reproductive organs (pollen) to the female reproductive organs (ovules). This process results in the formation of seeds, which are essential for the continuation of the plant species.

3. How does siphonogamy differ from other forms of fertilisation?

Siphonogamy differs from other forms of fertilisation, such as self-fertilisation or asexual reproduction, because it involves the fusion of gametes from two different individuals. This allows for genetic diversity and increases the chances of survival for the offspring.

4. What are the steps involved in siphonogamy?

The first step in siphonogamy is the transfer of pollen from the male reproductive organs to the female reproductive organs. This is followed by the fusion of the male and female gametes to form a zygote. The zygote then develops into an embryo, which eventually grows into a new plant.

5. Why is siphonogamy important for plant evolution?

Siphonogamy is important for plant evolution because it allows for the creation of new genetic combinations and variations within a species. This can lead to the development of new traits that may be beneficial for the survival of the species in changing environments. Additionally, siphonogamy also allows for the creation of new plant species through cross-pollination between different individuals.

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