Plant probiotics , also known as flora growing upgrade bacterium ( PGPB ) , are beneficial bacteria that can raise flora growth and development . These bacterium have been get hold to allow various benefits to plant , such as alimentary solubilization , internal secretion production , disease resistance , and punctuate tolerance . Here , I will discuss some major genera of flora growth advance probiotic bacterium and render examples of each .

1 . Bacillus : B species are wide recognized for their ability to promote plant growth . They produce enzyme that serve solubilize nutrient , such as phosphorus , making them more usable to plants . Additionally , B specie can bring forth plant internal secretion like auxins and cytokinins , which modulate plant life ontogeny and development . One instance of Bacillus is Bacillus subtilis , which has been used as a biofertilizer and biocontrol agent in agriculture .

2 . Paraburkholderia : Paraburkholderia ( formerly sleep together as Burkholderia ) species are fuck for their nitrogen - fixing ability . These bacteria can convert atmospheric atomic number 7 into a form that plants can use , thereby providing a natural source of nitrogen . Paraburkholderia coinage also produce siderophores , which are compounds that chelate branding iron and make it available to flora . An instance of Paraburkholderia is Paraburkholderia phytofirmans , which has been show to enhance works growth and stress permissiveness .

3 . genus Pseudomonas : Pseudomonas species are versatile plant probiotics that can upgrade ontogeny and protect plants against pathogens . They produce a orbit of antimicrobic compounds , such as antibiotics and siderophores , which inhibit the growth of harmful microbes . Pseudomonas species also stimulate plant growth through the product of phytohormones . One well - live example is Pseudomonas fluorescens , which has been extensively studied for its plant growth promoting and biocontrol holding .

4 . Acinetobacter : Acinetobacter species have been shew to enhance plant ontogeny by facilitate nutrient uptake and solubilization . They can bring out organic acids and enzymes that fracture down complex organic compounds , releasing nutrient for plant . Acinetobacter coinage also have the power to fix nitrogen and produce plant life development - promote substances . While not as well - studied as other genera , Acinetobacter show promising electric potential as a plant probiotic .

5 . Alcaligenes : Alcaligenes species are known for their ability to advance plant emergence by solubilizing mineral and producing plant life growth - promoting substances . They can enhance alimentary accessibility to plants through the yield of constitutional acids and enzymes . Alcaligenes species have also been report to improve plant margin to abiotic stress , such as drought and salinity . Although less normally study , Alcaligenes hold hope as a industrial plant probiotic .

6 . Arthrobacter : Arthrobacter metal money have been found to promote plant growth by solubilizing daystar and bring forth plant growth - advance substances . They have the ability to release phosphorus from constitutional and inorganic source , make it more approachable to plant . Arthrobacter species also create siderophores , which help flora take on iron . While not as extensively studied as other genera , Arthrobacter has shown potential as a plant probiotic .

7 . Serratia : Serratia specie are do it for their power to produce plant growth - promote nitty-gritty , including hormones and enzymes . They can excite root elongation and enhance alimental intake by plant life . Serratia species have also been reported to have biocontrol activity against plant pathogens . One example is Serratia marcescens , which has been studied for its plant life growth - promoting and biocontrol property .

These are just a few examples of the major genus of plant growth promoting probiotic bacteria . Each genus has different mechanisms of action at law and can provide unique benefit to plant life . incorporate these beneficial bacterium into agricultural practices has the electric potential to improve craw productivity , lose weight the use of chemical substance fertilizers and pesticides , and promote sustainable agriculture .

Caroline Bates