Botany Archives - Science Connected Magazine

This Bug’s Bacteria Helps Rice Plants Boost Immunity

June 20, 2019June 18, 2019 Science Connectedmicrobes

By Radhika Desikan Rice is the most widely consumed staple cereal crop for about half of the world’s human population, but its cultivation comes with inherent challenges, such as crop attacks by herbivorous pests. Brown planthopper (BPH) is an insect pest which feeds on rice plants and causes extensive damage to crops. However, there are some rice varieties that are resistant to BPH; increasing research in this area is aimed at understanding the mechanisms of this resistance. Moreover, although there are about 800 insect herbivores that feed on rice, the…

Botany Ecology Environment

An Evolutionary Approach to Conserving Plant Habitats

May 23, 2019May 23, 2019 Science Connectedbiodiversity, conservation, evolution, natural habitat, plants, species

By Mackenzie Myers (@thetiniestnail) To conserve plant habitats, a traditional approach to biodiversity—species richness, or saving as many species as possible—might not be the most effective route. Instead, vulnerable landscapes might be better served by a quality-over-quantity mindset, a recent paper from a team of UC Berkeley scientists suggests. Think of going into a grocery store. On a budget and with limited cooking time, shoppers probably don’t buy the first dozen random ingredients they see on the shelf. Rather, they find it more practical to shop deliberately, perhaps by looking…

Biology Botany

Plants Can Win a Battle against Aphids

May 16, 2019May 12, 2019 Science Connectedaphid, crops, pest, pesticide, resistance

By Radhika Desikan Being sessile, plants are faced with constant pressures from their environment, such as extreme climates, microbes, and herbivores including insects and animals. To cope with these challenges, some plants have evolved the ability to tolerate particular stresses or defend themselves against insect pests. For decades, scientists have been trying to understand how some plants tolerate these challenges, with the aim of improving overall plant health and increasing crop yields. Aphids are a problem Aphids are common pests of most cultivated plants. They belong to a family of…

Biology Botany Chemistry

Microbes Help Plants Survive Heavy Metal Stress

April 18, 2019April 18, 2019 Science Connectedheavy metals, microbes, soil contamination, soil fungi, soil microbes, soil microbiome

By Radhika Desikan When you hear the term heavy metal, what do you think of? Music or chemistry? Exposure to heavy metal music can cause stress in some humans. But what about chemical heavy metals? Are they good or bad for the environment and living organisms? In chemical terms, heavy metals are elements in earth’s crust that have a high density (weight), and they include zinc, copper, iron, silver, gold, arsenic, lead, and cobalt, to name a few. While trace amounts of heavy metals such as copper, iron, cobalt, and…

Anthropology Biology Botany Chemistry

Leaf Age Matters for Plant Survival

April 11, 2019April 3, 2019 Science Connectedbotany, leaf age, plant, plant age, plant communication

By Radhika Desikan Does age really matter? For us humans, age seems to be a very sensitive issue relevant to how we live our lives. And while it also matters to plants, it does so at a different level. Some of our tissues, like skin, have cells that are constantly dividing (to replace dead cells) and therefore differ in age, but what defines our age as an organism is not the life span of individual cells in our body, but rather the length of time that has passed since our…

Biology Botany

Plants Communicate with Neighbors in Response to Touch

March 14, 2019March 14, 2019 Science Connectedcommunication, plant communication, plants, senses, volatile compounds, volatiles

By Radhika Desikan How well do you and your neighbour know each other? Chances are, very little these days. But some living things, including plants, know their neighbours well. According to new research, it appears that what one plant “feels” can also be sensed by its neighbouring plant. Isn’t that remarkable? It is a fact of life that plants do not move from one place to another. Therefore plants, unlike humans, cannot move away from any impending danger, be it a herbivore, a disease-causing microbe, or even the cold and…

Biology Botany Chemistry

To Grow or Not to Grow? Bacteria Make Seeds Think!

February 7, 2019February 22, 2019 Science Connectedbacteria, germination, growth, plants, seeds

By Radhika Desikan A seed is the beginning of new life for most flowering plants. It has all the potential to develop into a new plant, with its own stored food used for germination (the sprouting of a seed). However, if you have done any gardening, you might know that not all seeds always germinate. Whether or not a seed grows into a plant is determined by a number of factors, such as the presence of oxygen, water, and the right temperature. Seeds have a remarkable ability to detect whether…

Astronomy Biology Botany

Space Farming Is More Than Just Plants

December 13, 2018December 12, 2018 Science Connectedagriculture, experiments in space, life in space, space exploration, space farming

In a remarkable new study, scientists studied how plants can grow better in conditions that mimic microgravity in space. This study highlights the prospects of future sustainable space farming, …which may be the answer to long-term feeding of astronauts who need to survive in space.

Biology Botany Physics

How Do Plants Know Which Way to Grow?

October 10, 2018October 12, 2018 Science Connectedbiology, botany, environment, gravity, plants

By Shayna Keyles (@shaynakeyles) How do plants know which way is up and which way is down? No matter which way you put a seed in the soil, it will always send its roots down and its shoots up. (Unless you’re in space–we’ll get back to that later.) The answer lies in tropism: motion in response to external stimulus. This is pretty amazing, considering that in the traditional sense, plants can’t move. Specifically, plants are affected by geotropism, phototropism, and hydrotropism. In other words, plants move toward gravity, light, and water,…

Botany Environment

California’s Urban Forests Have Lowest Tree Cover per Resident

January 23, 2018January 23, 2018 Science Connectedcalifornia, forests, trees, urban

By Neha Jain @lifesciexplore California’s urban forests are not just a pretty sight; they are an asset valued at a whopping $181 billion, finds a new study. But, according to the study, the state’s urban tree cover at 90.8 square meters (109 square yards) per city resident is the lowest among all US states. The good news is that there are 236 million spots available for more trees to be planted. The study finds that urban forests cover 15 percent of the urban area in California, consisting of 173 million…