DCMU - Revision history

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	[[Category:Photosynthesis inhibitors]]		[[Category:Photosynthesis inhibitors]]
	[[Category:Agricultural chemicals]]		[[Category:Agricultural chemicals]]
			<gallery>
			File:DCMU-3D-balls.png\|DCMU 3D balls
			</gallery>

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	~~'''DCMU''' (3-(3,4-dichlorophenyl)-1,1-dimethylurea) is a compound used in scientific research to inhibit~~ photosynthesis. It was introduced in 1954 as a herbicide. DCMU is a highly specific inhibitor of plastoquinone, which is involved in the photosynthetic electron transport chain within the chloroplast thylakoid membrane.		{{Short description\|An herbicide that inhibits photosynthesis}}
			{{Use dmy dates\|date=October 2023}}

	== ~~Mechanism of action~~ ==		== Overview ==
	DCMU ~~inhibits photosynthesis by blocking electron transport at the plastoquinone~~-~~quinone~~ (PQ) ~~binding site within Photosystem II (PS II~~). ~~This prevents~~ the ~~reduction~~ of PQ by ~~the PS II reaction center, thereby halting the photosynthetic electron transport chain~~. As a ~~result, the energy from absorbed light cannot be converted into chemical energy,~~ and ~~photosynthesis is inhibited~~.		'''DCMU''' (3-(3,4-dichlorophenyl)-1,1-dimethylurea), also known as '''Diuron''', is a chemical compound used primarily as an [[herbicide]]. It is a member of the [[phenylurea]] class of herbicides and functions by inhibiting photosynthesis in plants. DCMU is particularly effective against a wide range of [[annual plant\|annual]] and [[perennial plant\|perennial]] [[weed]]s.

	== ~~Uses~~ ==		== Mechanism of Action ==
	DCMU ~~is primarily used~~ in ~~scientific research as a specific inhibitor~~ of ~~photosynthesis~~. ~~It is also used as a herbicide~~, ~~as it can kill plants by inhibiting their ability~~ to ~~photosynthesize~~.		DCMU acts by blocking the [[photosystem II]] complex in the [[photosynthetic electron transport chain]]. It binds to the [[D1 protein]] of the photosystem II complex, preventing the transfer of electrons from [[plastoquinone]] to the [[cytochrome b6f complex]]. This inhibition disrupts the normal flow of electrons, effectively halting the process of [[photosynthesis]] and leading to the death of the plant.

	== ~~Safety~~ ==		== Applications ==
	DCMU is ~~moderately toxic~~ to ~~humans~~ and ~~animals~~. It ~~can cause skin and eye irritation, and ingestion or inhalation can lead to symptoms~~ such as ~~nausea~~, ~~vomiting~~, and ~~difficulty breathing~~. It is ~~also toxic to aquatic organisms and can cause long-term adverse effects~~ in ~~the environment~~.		DCMU is widely used in [[agriculture]] to control weeds in [[crops]] such as [[cotton]], [[sugarcane]], and [[fruit]] orchards. It is also used in non-crop areas such as [[railway]]s, [[industrial sites]], and [[roadside]]s to manage unwanted vegetation. Due to its mode of action, DCMU is particularly useful in areas where selective herbicides are not effective.

	== ~~See also~~ ==		== Environmental Impact ==
			The use of DCMU can have significant environmental impacts. As a persistent chemical, it can remain in the soil and water for extended periods, potentially affecting non-target organisms. DCMU is known to be toxic to [[aquatic life]], and its runoff into water bodies can lead to the disruption of aquatic ecosystems. Therefore, its application is regulated in many countries to minimize environmental damage.

			== Safety and Handling ==
			When handling DCMU, it is important to follow safety guidelines to prevent exposure. Protective clothing, gloves, and masks should be worn to avoid skin contact and inhalation. In case of accidental exposure, immediate medical attention is recommended.

			== Related Pages ==
			* [[Herbicide]]
	* [[Photosynthesis]]		* [[Photosynthesis]]
	* [[Photosystem II]]		* [[Photosystem II]]
	* [[~~Plastoquinone]]~~		* [[Phenylurea]]
	* [[Herbicide]]

	[[Category:Herbicides]]		[[Category:Herbicides]]
	[[Category:Photosynthesis inhibitors]]		[[Category:Photosynthesis inhibitors]]
	[[Category:~~Ureas~~]]		[[Category:Agricultural chemicals]]
	~~[[Category:Chloroarenes]]~~

	~~{{stub}}~~
	~~<gallery>~~
	~~File:DCMU Diuron.svg\|Chemical structure of DCMU (Diuron)~~
	~~File:DCMU-3D-balls.png\|3D ball model of DCMU~~
	~~</gallery>~~

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	{{stub}}		{{stub}}
			<gallery>
			File:DCMU Diuron.svg\|Chemical structure of DCMU (Diuron)
			File:DCMU-3D-balls.png\|3D ball model of DCMU
			</gallery>

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2024-02-25T22:27:23Z

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New page

'''DCMU''' (3-(3,4-dichlorophenyl)-1,1-dimethylurea) is a compound used in scientific research to inhibit photosynthesis. It was introduced in 1954 as a herbicide. DCMU is a highly specific inhibitor of plastoquinone, which is involved in the photosynthetic electron transport chain within the chloroplast thylakoid membrane.

== Mechanism of action ==
DCMU inhibits photosynthesis by blocking electron transport at the plastoquinone-quinone (PQ) binding site within Photosystem II (PS II). This prevents the reduction of PQ by the PS II reaction center, thereby halting the photosynthetic electron transport chain. As a result, the energy from absorbed light cannot be converted into chemical energy, and photosynthesis is inhibited.

== Uses ==
DCMU is primarily used in scientific research as a specific inhibitor of photosynthesis. It is also used as a herbicide, as it can kill plants by inhibiting their ability to photosynthesize.

== Safety ==
DCMU is moderately toxic to humans and animals. It can cause skin and eye irritation, and ingestion or inhalation can lead to symptoms such as nausea, vomiting, and difficulty breathing. It is also toxic to aquatic organisms and can cause long-term adverse effects in the environment.

== See also ==
* [[Photosynthesis]]
* [[Photosystem II]]
* [[Plastoquinone]]
* [[Herbicide]]

[[Category:Herbicides]]
[[Category:Photosynthesis inhibitors]]
[[Category:Ureas]]
[[Category:Chloroarenes]]

{{stub}}