Spongy tissue
Encyclopedia
Spongy tissue is a type of tissue found both in plants and animals.

In plants, it is part of the mesophyll, where it forms a layer next to the palisade cell
Palisade cell
Palisade cells are cells found within the mesophyll in leaves of dicotyledonous plants. They contain chloroplasts, which convert the energy in light to chemical energy through photosynthesis. The cylindrical shape of palisade cells allows a large amount of light to be absorbed by the chloroplasts...

s in the leaf
Leaf
A leaf is an organ of a vascular plant, as defined in botanical terms, and in particular in plant morphology. Foliage is a mass noun that refers to leaves as a feature of plants....

. It is also the name of a disorder of fruit ripening which can reduce the value of a fruit yield, especially in mango
Mango
The mango is a fleshy stone fruit belonging to the genus Mangifera, consisting of numerous tropical fruiting trees in the flowering plant family Anacardiaceae. The mango is native to India from where it spread all over the world. It is also the most cultivated fruit of the tropical world. While...

. The spongy mesophyll cells are less likely to go through photosynthesis than those in the palisade mesophyll.

The spongy mesophyll's function is to allow for the interchange of gases(CO2)that are needed for photosynthesis.
In case of alphonso mango variety this problem is common. It's more susceptible to it (definition of spongy tissue-it is white crocky patch like structure)
Spongy tissue is also a type of animal tissue
Soft tissue
In anatomy, the term soft tissue refers to tissues that connect, support, or surround other structures and organs of the body, not being bone. Soft tissue includes tendons, ligaments, fascia, skin, fibrous tissues, fat, and synovial membranes , and muscles, nerves and blood vessels .It is sometimes...

 which contains smooth muscles, fibrous tissues, spaces, veins, and arteries. An example is the corpus spongiosum penis. In bone, the spongy tissue is called cancellous tissue.
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