Arthur James McComb 1936–2017

Professor Arthur McComb conducted pioneer research on the occurrence and mode of action of the plant growth hormones gibberellins for fifteen years. He then applied his experimental skills and physiological knowledge to develop a whole ecosystem approach to the study of aquatic systems. He was passionate in wanting to improve the state of environmental management, based on rational, logical and well-founded biological principles. He and his team focused primarily on the mechanisms controlling plant growth and productivity in aquatic environments, and especially the effects of nutrient enrichment and its consequences, eutrophication. He became a leader in nutrient analysis of water systems, with innovations in how to determine nutrient pathways into waterways and strategies for fixing these issues. This important research has informed the long-term management of several important aquatic systems in Western Australia: the Blackwood River Estuary, the Peel Harvey Estuary, and the protection of seagrasses in Shark Bay, the Swan River and Cockburn Sound. Arthur McComb had a seminal influence on a generation of researchers. Thirty-nine students completed their higher degrees under his supervision and they are spread internationally and throughout Australia in universities, state government departments and consulting firms, confirming his influence on driving our understanding and management of marine, estuarine and freshwater systems.

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Reproductive biology of Rhabdosargus sarba (Sparidae) in Western Australian waters, in which it is a rudimentary hermaphrodite

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315403008786 ◽

2003 ◽

Vol 83 (6) ◽

pp. 1333-1346 ◽

Cited By ~ 19

Author(s):

S. Alex Hesp ◽

Ian C. Potter

Keyword(s):

Reproductive Biology ◽

Western Australia ◽

River Estuary ◽

Marine Waters ◽

Spawning Period ◽

Shark Bay ◽

Males And Females ◽

First Maturity ◽

Swan River ◽

Western Australian

The reproductive biology of the tarwhine Rhabdosargus sarba has been studied in three very different environments in Western Australia, namely the lower reaches of the Swan River Estuary and marine waters at the same latitude, i.e. ≈32°S, and a large subtropical marine embayment (Shark Bay) approximately 800 km further north. A macroscopic and histological examination of the gonads demonstrated that R. sarba is typically a rudimentary hermaphrodite in Western Australian waters, i.e. the juveniles develop into either a male or female in which the ovarian and testicular zones of the gonads, respectively, are macroscopically undetectable. This contrasts with the situation in the waters off Hong Kong and South Africa where R. sarba is reported to be a protandrous hermaphrodite. Although R. sarba spawns between mid-late winter and late spring in each water body, the onset of spawning in the estuary is delayed until salinities have risen well above their winter minima. Although males and females attain sexual maturity at very similar lengths in the Swan River Estuary and Shark Bay, i.e. each L50 for first maturity lies between 170 and 177 mm total length (TL), they typically reach maturity at an earlier age in the former environment, i.e. 2 vs 3 years old. During the spawning period, only 25 and 12% of the males and females, respectively, that were caught between 180 and 260 mm TL in nearshore marine waters were mature, whereas 94 and 92% of the males and females, respectively, that were collected in this length-range over reefs, were mature. This indicates that R. sarba tends to move offshore when it has become ‘physiologically’ ready to mature. The L50s at first maturity indicate that the minimum legal length in Western Australia (230 mm TL) is appropriate for managing this species.

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Nanotechnology Potential in Seed Priming for Sustainable Agriculture

Nanomaterials ◽

10.3390/nano11020267 ◽

2021 ◽

Vol 11 (2) ◽

pp. 267

Author(s):

Anderson do Espirito Santo Pereira ◽

Halley Caixeta Oliveira ◽

Leonardo Fernandes Fraceto ◽

Catherine Santaella

Keyword(s):

Plant Growth ◽

Agricultural Practices ◽

Seed Priming ◽

Growth Hormones ◽

Plant Growth And Development ◽

Plant Growth Hormones ◽

Entire Plant ◽

Quality Of Food ◽

Sustainable Agricultural Practices

Our agriculture is threatened by climate change and the depletion of resources and biodiversity. A new agriculture revolution is needed in order to increase the production of crops and ensure the quality and safety of food, in a sustainable way. Nanotechnology can contribute to the sustainability of agriculture. Seed nano-priming is an efficient process that can change seed metabolism and signaling pathways, affecting not only germination and seedling establishment but also the entire plant lifecycle. Studies have shown various benefits of using seed nano-priming, such as improved plant growth and development, increased productivity, and a better nutritional quality of food. Nano-priming modulates biochemical pathways and the balance between reactive oxygen species and plant growth hormones, resulting in the promotion of stress and diseases resistance outcoming in the reduction of pesticides and fertilizers. The present review provides an overview of advances in the field, showing the challenges and possibilities concerning the use of nanotechnology in seed nano-priming, as a contribution to sustainable agricultural practices.

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Studies in Plant Growth Hormones

Journal of Experimental Botany ◽

10.1093/jxb/7.2.219 ◽

1956 ◽

Vol 7 (2) ◽

pp. 219-238 ◽

Cited By ~ 19

Author(s):

S. HOUSLEY ◽

J. A. BENTLEY

Keyword(s):

Plant Growth ◽

Growth Hormones ◽

Plant Growth Hormones

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Influence of plant growth hormones on the growth of Mucor rouxii and chitosan production

Microbiological Research ◽

10.1016/j.micres.2007.05.003 ◽

2009 ◽

Vol 164 (3) ◽

pp. 347-351 ◽

Cited By ~ 11

Author(s):

Sandipan Chatterjee ◽

Sudipta Chatterjee ◽

Bishnu P. Chatterjee ◽

Arun K. Guha

Keyword(s):

Plant Growth ◽

Growth Hormones ◽

Mucor Rouxii ◽

Plant Growth Hormones

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P XXI.10 A study on tbe mutagenic effects of some plant growth hormones by salmonella/microsome and SOS chromotest systems

Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis ◽

10.1016/s0027-5107(97)83323-4 ◽

1997 ◽

Vol 379 (1) ◽

pp. S206

Author(s):

Öksūzoğlu Emine ◽

Diril Nuran ◽

Durusoy Mübeccel

Keyword(s):

Plant Growth ◽

Growth Hormones ◽

Plant Growth Hormones ◽

Sos Chromotest ◽

Mutagenic Effects

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SECONDARY METABOLITES WITH ANTIBIOTIC ACTIVITY OF MARINE ACTINOBACTERIA

Microbiology&Biotechnology ◽

10.18524/2307-4663.2021.3(53).245323 ◽

2021 ◽

pp. 28-43

Author(s):

K. S. Potapenko ◽

N. V. Korotaieva ◽

V. О. Ivanytsia

Keyword(s):

Secondary Metabolites ◽

Plant Growth ◽

Bioactive Compounds ◽

Current Literature ◽

Antibiotic Activity ◽

Growth Hormones ◽

Biologically Active ◽

Marine Actinobacteria ◽

Biotechnological Potential ◽

Plant Growth Hormones

Marine actinobacteria are active producers and an unused rich source of various biologically active secondary metabolites, such as antibiotics, antitumor, antiviral and antiinflammatory compounds, biopesticides, plant growth hormones, pigments, enzymes, enzyme inhibitors.In this review describes data from current literature sources for the period from 2017 to 2021 about various bioactive compounds that produce marine actinobacteria, their antibiotic activity and biotechnological potential, the main groups of secondary metabolites and their producers.

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Role of Plant Growth Hormones During Soil Water Deficit: A Review

Soil Water Deficit and Physiological Issues in Plants ◽

10.1007/978-981-33-6276-5_6 ◽

2021 ◽

pp. 489-583

Author(s):

Amitav Bhattacharya

Keyword(s):

Plant Growth ◽

Soil Water ◽

Water Deficit ◽

Growth Hormones ◽

Soil Water Deficit ◽

Plant Growth Hormones

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Plant Growth Hormones

The Hormones ◽

10.1016/b978-0-12-395712-2.50007-5 ◽

1948 ◽

pp. 5-74 ◽

Cited By ~ 11

Author(s):

KENNETH V. THIMANN

Keyword(s):

Plant Growth ◽

Growth Hormones ◽

Plant Growth Hormones

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Regulation of Three Key Kinases of Brassinosteroid Signaling Pathway

International Journal of Molecular Sciences ◽

10.3390/ijms21124340 ◽

2020 ◽

Vol 21 (12) ◽

pp. 4340 ◽

Cited By ~ 1

Author(s):

Juan Mao ◽

Jianming Li

Keyword(s):

Plant Growth ◽

Growth Hormones ◽

Regulatory Mechanisms ◽

Protein Abundance ◽

Receptor Kinase ◽

Cellular Mechanisms ◽

Plant Growth Hormones ◽

Wide Range ◽

Brassinosteroid Signaling ◽

Receptor Kinases

Brassinosteroids (BRs) are important plant growth hormones that regulate a wide range of plant growth and developmental processes. The BR signals are perceived by two cell surface-localized receptor kinases, Brassinosteroid-Insensitive1 (BRI1) and BRI1-Associated receptor Kinase (BAK1), and reach the nucleus through two master transcription factors, bri1-EMS suppressor1 (BES1) and Brassinazole-resistant1 (BZR1). The intracellular transmission of the BR signals from BRI1/BAK1 to BES1/BZR1 is inhibited by a constitutively active kinase Brassinosteroid-Insensitive2 (BIN2) that phosphorylates and negatively regulates BES1/BZR1. Since their initial discoveries, further studies have revealed a plethora of biochemical and cellular mechanisms that regulate their protein abundance, subcellular localizations, and signaling activities. In this review, we provide a critical analysis of the current literature concerning activation, inactivation, and other regulatory mechanisms of three key kinases of the BR signaling cascade, BRI1, BAK1, and BIN2, and discuss some unresolved controversies and outstanding questions that require further investigation.

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