Engineering Host Microbiome for Crop Improvement and Sustainable Agriculture

Kaul, Sanjana; Choudhary, Malvi; Gupta, Suruchi; Dhar, Manoj K.

doi:10.3389/fmicb.2021.635917

Cited by 51 publications

(14 citation statements)

References 97 publications

(78 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The use of cyanobacteria to enhance crop growth has been proposed as a potential executive performance in crop enhancement. [ 55 ]. These results align with [ 35 ], who found that treating plants with cyanobacteria greatly improved their vegetative growth.…”

Section: Discussionmentioning

confidence: 99%

Cyanobacteria-Mediated Immune Responses in Pepper Plants against Fusarium Wilt

Abdelaziz

Attia

Salem

et al. 2022

Plants

View full text Add to dashboard Cite

Research in plant pathology has increasingly focused on developing environmentally friendly, effective strategies for controlling plant diseases. Cyanobacteria, including Desmonostoc muscorum, Anabaena oryzae, and Arthrospiraplatensis, were applied to Capsicum annuum L. to induce immunity against Fusarium wilt. Soil irrigation and foliar shoots (FS) application were used in this investigation. The disease symptoms, disease index, osmotic contents, total phenol, Malondialdehyde (MDA), hydrogen peroxide (H2O2), antioxidant enzymes (activity and isozymes), endogenous hormone content, and response to stimulation of defense resistance in infected plants were assessed. Results demonstrated that using all cyanobacterial aqueous extracts significantly reduced the risk of infection with Fusarium oxysporum. One of the most effective ways to combat the disease was through foliar spraying with Arthrospira platensis, Desmonostoc muscorum, and Anabaena oryzae (which provided 95, 90, and 69% protection percent, respectively). All metabolic resistance indices increased significantly following the application of the cyanobacterial aqueous extracts. Growth, metabolic characteristics, and phenols increased due to the application of cyanobacteria. Polyphenol oxidase (PPO) and peroxidase (POD) expressions improved in response to cyanobacteria application. Furthermore, treatment by cyanobacteria enhanced salicylic acid (SA) and Indole-3-Acetic Acid (IAA) in the infected plants while decreasing Abscisic acid (ABA). The infected pepper plant recovered from Fusarium wilt because cyanobacterial extract contained many biologically active compounds. The application of cyanobacteria through foliar spraying seems to be an effective approach to relieve the toxic influences of F. oxysporum on infected pepper plants as green and alternative therapeutic nutrients of chemical fungicides.

show abstract

Section: Discussionmentioning

confidence: 99%

Cyanobacteria-Mediated Immune Responses in Pepper Plants against Fusarium Wilt

Abdelaziz

Attia

Salem

et al. 2022

Plants

View full text Add to dashboard Cite

show abstract

“…In addition, land plants largely depend upon their associated microbes for growth promotion and nutrient availability under various stresses (Edwards et al, 2015;Andreote and Silva, 2017;Kaul et al, 2021). If we better study the beneficial interactions between plants and their associated microbiota in the rhizosphere, such as plant growth-promoting rhizobacteria (PGPR) (Kumar and Verma, 2018), arbuscular mycorrhizal (AM) fungi (Genre et al, 2020), and endophytic fungi (Tang et al, 2019), we can properly manipulate the PGPR and AM fungi in soils for facilitating plant nutrient acquisition (White, 2019) and alleviating plant responses to toxic metal stresses (Rajkumar et al, 2012;Tak et al, 2013), and can lead the modern agriculture to a master exploration of these universal nutrient sources, improving crop yield and agricultural sustainability.…”

Section: Discussionmentioning

confidence: 99%

Cross-Talks Between Macro- and Micronutrient Uptake and Signaling in Plants

et al. 2021

View full text Add to dashboard Cite

In nature, land plants as sessile organisms are faced with multiple nutrient stresses that often occur simultaneously in soil. Nitrogen (N), phosphorus (P), sulfur (S), zinc (Zn), and iron (Fe) are five of the essential nutrients that affect plant growth and health. Although these minerals are relatively inaccessible to plants due to their low solubility and relative immobilization, plants have adopted coping mechanisms for survival under multiple nutrient stress conditions. The double interactions between N, Pi, S, Zn, and Fe have long been recognized in plants at the physiological level. However, the molecular mechanisms and signaling pathways underlying these cross-talks in plants remain poorly understood. This review preliminarily examined recent progress and current knowledge of the biochemical and physiological interactions between macro- and micro-mineral nutrients in plants and aimed to focus on the cross-talks between N, Pi, S, Zn, and Fe uptake and homeostasis in plants. More importantly, we further reviewed current studies on the molecular mechanisms underlying the cross-talks between N, Pi, S, Zn, and Fe homeostasis to better understand how these nutrient interactions affect the mineral uptake and signaling in plants. This review serves as a basis for further studies on multiple nutrient stress signaling in plants. Overall, the development of an integrative study of multiple nutrient signaling cross-talks in plants will be of important biological significance and crucial to sustainable agriculture.

show abstract

“…Although conceptually quite different from assembling synthetic microbiomes from known and well-studied bacteria, it is possible to add specific chemicals to the soil and thereby increase the numbers of certain bacterial strains while decreasing the numbers of other strains [ 53 , 58 , 62 , 68 , 69 , 138 , 139 ]. This reflects the fact that plant metabolites often have a large impact on the bacterial community in the soil.…”

Section: Synthetic Microbiomesmentioning

confidence: 99%

Recent Developments in the Study of Plant Microbiomes

Glick

Gamalero

2021

Microorganisms

View full text Add to dashboard Cite

To date, an understanding of how plant growth-promoting bacteria facilitate plant growth has been primarily based on studies of individual bacteria interacting with plants under different conditions. More recently, it has become clear that specific soil microorganisms interact with one another in consortia with the collective being responsible for the positive effects on plant growth. Different plants attract different cross-sections of the bacteria and fungi in the soil, initially based on the composition of the unique root exudates from each plant. Thus, plants mostly attract those microorganisms that are beneficial to plants and exclude those that are potentially pathogenic. Beneficial bacterial consortia not only help to promote plant growth, these consortia also protect plants from a wide range of direct and indirect environmental stresses. Moreover, it is currently possible to engineer plant seeds to contain desired bacterial strains and thereby benefit the next generation of plants. In this way, it may no longer be necessary to deliver beneficial microbiota to each individual growing plant. As we develop a better understanding of beneficial bacterial microbiomes, it may become possible to develop synthetic microbiomes where compatible bacteria work together to facilitate plant growth under a wide range of natural conditions.

show abstract

Engineering Host Microbiome for Crop Improvement and Sustainable Agriculture

Cited by 51 publications

References 97 publications

Cyanobacteria-Mediated Immune Responses in Pepper Plants against Fusarium Wilt

Cyanobacteria-Mediated Immune Responses in Pepper Plants against Fusarium Wilt

Cross-Talks Between Macro- and Micronutrient Uptake and Signaling in Plants

Recent Developments in the Study of Plant Microbiomes

Contact Info

Product

Resources

About